Adware.Gexin.3642

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) 0a22####.cdn.uc####.####.cn:80
TCP(HTTP/1.1) ac####.l####.uc####.####.cn:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) 1####.217.17.46:443
TCP(TLS/1.0) h####.b####.com:443
TCP(TLS/1.0) api.wh####.com:443
TCP(TLS/1.0) loc.map.b####.com:443
TCP(TLS/1.0) 1####.217.17.78:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
ac####.l####.uc####.####.cn
api.map.b####.com
api.wh####.com
c####.g####.ig####.com
c-h####.g####.com
h####.b####.com
l####.tbs.qq.com
loc.map.b####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.wh####.com

HTTP GET requests:

0a22####.cdn.uc####.####.cn/upload/VideoCover/ONECOLUMNIMG/2018100815005...
0a22####.cdn.uc####.####.cn/upload/VideoCover/ONECOLUMNIMG/2018101110422...
0a22####.cdn.uc####.####.cn/upload/icons/kindergartenservice/CourseLesso...
0a22####.cdn.uc####.####.cn/upload/icons/radio/avatar/20161102144531728....
0a22####.cdn.uc####.####.cn/upload/icons/radio/avatar/20161212153234164....
0a22####.cdn.uc####.####.cn/upload/icons/radio/background/20161102153011...
0a22####.cdn.uc####.####.cn/upload/icons/radio/coverimage/Album/20161130...
0a22####.cdn.uc####.####.cn/upload/icons/radio/coverimage/Album/20161212...
0a22####.cdn.uc####.####.cn/upload/icons/radio/coverimage/program/201611...
0a22####.cdn.uc####.####.cn/upload/kindergardenservice/image/20180927103...
0a22####.cdn.uc####.####.cn/upload/kindergardenservice/image/20180929112...
0a22####.cdn.uc####.####.cn/upload/kindergardenservice/menu/babyparadise...
0a22####.cdn.uc####.####.cn/upload/kindergardenservice/menu/courseware_0...
0a22####.cdn.uc####.####.cn/upload/kindergardenservice/menu/policy.png
0a22####.cdn.uc####.####.cn/upload/kindergardenservice/menu/teachingplan...
0a22####.cdn.uc####.####.cn/upload/radio/audio/20161110114623087.mp3
0a22####.cdn.uc####.####.cn/upload/radio/audio/20161110114657453.mp3
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_BAI450
t####.c####.q####.####.com/tdata_YJA893

HTTP POST requests:

a####.exc.mob.com/errconf
ac####.l####.uc####.####.cn/get_device_info
c-h####.g####.com/api.php?format=####&t=####
l####.tbs.qq.com/ajax?c=####&k=####
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.duid
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.vpl_lock
/data/data/####/1a0d9d7189185d4446cc5d9b9b85dbd0bbfd1bc0bffedfb....0.tmp
/data/data/####/1c612916feb4f9350e4fd0feb07f9fb9
/data/data/####/35cf640dfe6c2475b8bb3d3c6519f2dca8ad844e87498ed....0.tmp
/data/data/####/4b8c1bb1f33af0a213a68392c36bfdd451d3ff646e73cde....0.tmp
/data/data/####/4c5a11c43d3a8652e395e8f4d946aaa4cf2a4cca5d85f32....0.tmp
/data/data/####/4cb46e5c94eed158cf919c0120e4524981b584b8a3eb243....0.tmp
/data/data/####/4d98b4764ccca7e06a4ebaf5b8eb85e339d3263d4680232....0.tmp
/data/data/####/5591e8bf343147588b2184ba60ce103671d83eb739ec0c9....0.tmp
/data/data/####/71db1fbccfa12407f1ecae2042e8a8f6
/data/data/####/MultiDex.lock
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/__Baidu_Stat_SDK_SendRem.xml
/data/data/####/__local_ap_info_cache.json
/data/data/####/__local_last_session.json
/data/data/####/__local_stat_cache.json
/data/data/####/__send_data_1539674974055
/data/data/####/a860b28a301d03ce04fae752bdc3dd419b3253f836fd25f....0.tmp
/data/data/####/authStatus_com.rjwh.dingdong.clients;remote.xml
/data/data/####/b224d0365b3959abaf9c5db7720078f6d798a89d124f6a9....0.tmp
/data/data/####/b5add20f81e5ccedaed413ed818512475969bcff45981f1....0.tmp
/data/data/####/bf31a0c178bfc12fb7e5f3c5cfb2b75ba69e3253e7a917d....0.tmp
/data/data/####/c270add7a152c38388c4111eba39854b5d2124338fd7daa....0.tmp
/data/data/####/c3c5327c585dc0ac130b0fb48028882403bb07496c317d5....0.tmp
/data/data/####/caae8ef6f5eceb447920079451c771e7cf8992baeaf07d7....0.tmp
/data/data/####/core_info
/data/data/####/d502489918ed03dd2505bcbc65b35b1f7271069e525df1e....0.tmp
/data/data/####/dac3e947f6c7ddbe52036af842b3fd61c88bf05c0c72d22....0.tmp
/data/data/####/db_ddbb_2-journal
/data/data/####/domain_1
/data/data/####/f76df73f922e48d612b21ab63254cab0fcd9eb75133a7ea....0.tmp
/data/data/####/firll.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libjiagu1029644748.so
/data/data/####/mob_commons_1
/data/data/####/mob_sdk_exception_1
/data/data/####/multidex.version.xml
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/tdata_BAI450
/data/data/####/tdata_BAI450.jar
/data/data/####/tdata_YJA893
/data/data/####/tdata_YJA893.jar
/data/data/####/ucloud_device_adapter.xml
/data/data/####/whrjwh.xml
/data/media/####/.artc_lock
/data/media/####/.confd
/data/media/####/.confd-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/data/media/####/.lesd_lock
/data/media/####/.mn_-1464060969
/data/media/####/.nomedia
/data/media/####/.pkg_lock
/data/media/####/.pkgs_lock
/data/media/####/.rc_lock
/data/media/####/.slw
/data/media/####/.ss_lock
/data/media/####/.timestamp
/data/media/####/Gray_Big_Number.fnt
/data/media/####/Gray_Big_Number_0.png
/data/media/####/Gray_Small_Number.fnt
/data/media/####/Gray_Small_Number_0.png
/data/media/####/Orange_Big_Number.fnt
/data/media/####/Orange_Big_Number_0.png
/data/media/####/Orange_Small_Number.fnt
/data/media/####/Orange_Small_Number_0.png
/data/media/####/app.db
/data/media/####/beeStar.png
/data/media/####/bg.jpg
/data/media/####/bg_7f53930b.png
/data/media/####/bgm_51bcd9c7.mp3
/data/media/####/bmFont.fnt
/data/media/####/bmFont.png
/data/media/####/button.mp3
/data/media/####/button_41c43e93.mp3
/data/media/####/clap.mp3
/data/media/####/clap_sound.mp3
/data/media/####/close.png
/data/media/####/cloud.js
/data/media/####/cloud.plist
/data/media/####/cloud.png
/data/media/####/cloud1.png
/data/media/####/cloud2.png
/data/media/####/cocos2djs.js
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.rjwh.dingdong.clients.bin
/data/media/####/com.rjwh.dingdong.clients.db
/data/media/####/conn.js
/data/media/####/correctEnd.mp3
/data/media/####/default.js
/data/media/####/default.res.json
/data/media/####/description.json
/data/media/####/dingdong.js
/data/media/####/dingdong.json
/data/media/####/dingdong.plist
/data/media/####/dingdong.png
/data/media/####/dingdongCar_ske_2687ffc8.json
/data/media/####/dingdongCar_tex_1e1d3141.png
/data/media/####/dingdongCar_tex_2986cc11.json
/data/media/####/dingdongSister.json
/data/media/####/dingdongSister.plist
/data/media/####/dingdongSister.png
/data/media/####/dingdong_ske_2f0411f1.json
/data/media/####/dingdong_tex_3a260d16.png
/data/media/####/dingdong_tex_4914634d.json
/data/media/####/dragonBones.min.js
/data/media/####/effectStar.png
/data/media/####/egret.min.js
/data/media/####/egret.web.min.js
/data/media/####/egret_icon.png
/data/media/####/end1.png
/data/media/####/end2.png
/data/media/####/erWeiMa.png
/data/media/####/evaType0.mp3
/data/media/####/evaType1.mp3
/data/media/####/evaType2.mp3
/data/media/####/evaType3.mp3
/data/media/####/evaType4.mp3
/data/media/####/evaType5.mp3
/data/media/####/favicon.ico
/data/media/####/fontLoading_5e199f55.fnt
/data/media/####/fontLoading_e9ea92c.png
/data/media/####/fontsRed_30dd8c73.fnt
/data/media/####/fontsRed_50c178dd.png
/data/media/####/game.js
/data/media/####/game.min.js
/data/media/####/gameDefault.plist
/data/media/####/gameDefault.png
/data/media/####/gamePay.plist
/data/media/####/gamePay.png
/data/media/####/groupGame.js
/data/media/####/hand.png
/data/media/####/iconDingDong.png
/data/media/####/iconFloor.png
/data/media/####/iconSpeak.png
/data/media/####/index.html
/data/media/####/info.png
/data/media/####/infoWord1.png
/data/media/####/infoWord2.png
/data/media/####/infoWord3.png
/data/media/####/infoWord4.png
/data/media/####/infoWord5.png
/data/media/####/infoWord6.png
/data/media/####/kown.png
/data/media/####/label1.png
/data/media/####/label2.png
/data/media/####/label3.png
/data/media/####/label4.png
/data/media/####/label5.png
/data/media/####/label6.png
/data/media/####/light.plist
/data/media/####/light.png
/data/media/####/lightBall.png
/data/media/####/load-0sheet_58478695.json
/data/media/####/load-0sheet_7ef842de.png
/data/media/####/loadScene.js
/data/media/####/loadingBg.png
/data/media/####/loadingBg_4a85ab2c.png
/data/media/####/loadingCloud.png
/data/media/####/loadingStar1.png
/data/media/####/main.min.js
/data/media/####/manifest.json
/data/media/####/mapCloseButton.png
/data/media/####/mapDataSet.js
/data/media/####/mapMethodSet.js
/data/media/####/mapPromptBox.png
/data/media/####/mapRetryButton.png
/data/media/####/mapSpriteClass.js
/data/media/####/map_1.png
/data/media/####/map_2.png
/data/media/####/map_3.png
/data/media/####/map_4.png
/data/media/####/map_5.png
/data/media/####/map_6.png
/data/media/####/map_bg.png
/data/media/####/p3.gif
/data/media/####/panelBg.png
/data/media/####/paopao.png
/data/media/####/pay_buyEnter.mp3
/data/media/####/pet_ske_528beccd.json
/data/media/####/pet_tex_23b83d10.png
/data/media/####/pet_tex_6d5c0ec6.json
/data/media/####/popBg.png
/data/media/####/preload-0sheet_48780feb.json
/data/media/####/preload-0sheet_65b935ed.png
/data/media/####/project.json
/data/media/####/promise.min.js
/data/media/####/res.min.js
/data/media/####/resource.js
/data/media/####/result0.mp3
/data/media/####/result1.mp3
/data/media/####/result2.mp3
/data/media/####/rightStar.png
/data/media/####/sceneC.js
/data/media/####/sceneCSub.js
/data/media/####/server.js
/data/media/####/sound1_1_1_baozha_191163b4.mp3
/data/media/####/startWord_3e261e2.mp3
/data/media/####/store.js
/data/media/####/store.min.js
/data/media/####/sub_map_1.png
/data/media/####/sub_map_1_1.png
/data/media/####/sub_map_2.png
/data/media/####/sub_map_2_1.png
/data/media/####/sub_map_3.png
/data/media/####/sub_map_3_1.png
/data/media/####/sub_map_4.png
/data/media/####/sub_map_4_1.png
/data/media/####/sub_map_5.png
/data/media/####/sub_map_5_1.png
/data/media/####/sub_map_6.png
/data/media/####/sub_map_6_1.png
/data/media/####/tdata_BAI450
/data/media/####/tdata_YJA893
/data/media/####/test.log
/data/media/####/tips.png
/data/media/####/tween.min.js
/data/media/####/web_cache_3_1_sound1.mp3
/data/media/####/web_cache_button.mp3
/data/media/####/web_cache_lose.mp3
/data/media/####/web_cache_win.mp3
/data/media/####/web_public_background_music1.mp3
/data/media/####/web_public_checkpoint_back_music.mp3
/data/media/####/web_public_defeated1.mp3
/data/media/####/web_public_defeated2.mp3
/data/media/####/web_public_defeated3.mp3
/data/media/####/web_public_drawing.mp3
/data/media/####/web_public_effect1.mp3
/data/media/####/web_public_effect_waou.mp3
/data/media/####/web_public_lose.mp3
/data/media/####/web_public_patch_puzzle_succeed1.mp3
/data/media/####/web_public_patch_puzzle_succeed2.mp3
/data/media/####/web_public_pull_figure_succeed1.mp3
/data/media/####/web_public_pull_figure_succeed2.mp3
/data/media/####/web_public_pull_figure_succeed3.mp3
/data/media/####/web_public_success.mp3
/data/media/####/web_public_ye.mp3
/data/media/####/web_public_yinzhang.mp3
/data/media/####/word0_0_0_6d9e2071.mp3
/data/media/####/word0_0_1_6d522e2c.mp3
/data/media/####/word0_0_2_36668334.mp3
/data/media/####/word0_0_3_692baf68.mp3
/data/media/####/word0_0_4_3edc9bf0.mp3
/data/media/####/word0_1_0_1d42039d.mp3
/data/media/####/word0_2_0_5e3239f3.mp3
/data/media/####/word0_3_0_401992ba.mp3
/data/media/####/word0_4_0_566b1d40.mp3
/data/media/####/xinsui.plist
/data/media/####/xinsui.png

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.AppPushService 25496 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu1029644748.so
getprop ro.product.cpu.abi
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.AppPushService 25496 300 0

Loads the following dynamic libraries:

crash_analysis
getuiext2
libjiagu1029644748
locSDK7a

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-ECB-PKCS5Padding
AES-ECB-PKCS7Padding
RSA-ECB-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-ECB-NoPadding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

Gains access to telephone information (number, imei, etc.).

Gains access to information about installed applications.

Gains access to information about running applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

Free trial