Adware.Gexin.8659

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Accesses the ITelephony private interface.

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) a23d654####.dlc####.fas####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) co####.chuma####.com:80
TCP(HTTP/1.1) api.s####.mob.com:80
TCP(HTTP/1.1) rs.eas####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) api.chuma####.com:80
TCP(TLS/1.0) a####.eas####.com:443
TCP(TLS/1.0) 7u####.v5.com.####.com:443
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.eas####.com
a####.exc.mob.com
a####.u####.com
and####.b####.qq.com
api.chuma####.com
api.s####.mob.com
c####.g####.ig####.com
c-h####.g####.com
co####.chuma####.com
dnc.chuma####.com
qnp.chuma####.com
rs.eas####.com
sdk.c####.ig####.com
sdk.o####.amp.####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

a23d654####.dlc####.fas####.com/app/comics/bgs/title_avg_custom_16588510...
a23d654####.dlc####.fas####.com/app/comics/bgs/title_avg_custom_29219351...
a23d654####.dlc####.fas####.com/app/comics/bgs/title_avg_custom_6514709_...
a23d654####.dlc####.fas####.com/app/cover/template/images/cover_template...
a23d654####.dlc####.fas####.com/app/news/20190212/5c625d175461a.jpg?imag...
a23d654####.dlc####.fas####.com/app/news/20190213/5c637a299b8e6.jpg?imag...
a23d654####.dlc####.fas####.com/app/user/channel/1498901481000978.png?im...
a23d654####.dlc####.fas####.com/splash_screen/1518091149000147.png?image...
a23d654####.dlc####.fas####.com/splash_screen/1518091160000453.png?image...
a23d654####.dlc####.fas####.com/splash_screen/1518091170000459.png?image...
api.chuma####.com/secure/?m=####&c=####&a=####
api.chuma####.com/secure/?m=####&c=####&a=####&version=####
co####.chuma####.com/config.php?system=####&version=####
rs.eas####.com/easemob/server.json?sdk_version=####&app_key=####&file_ve...
t####.c####.q####.####.com/tdata_BAI450
t####.c####.q####.####.com/tdata_SLj922

HTTP POST requests:

a####.exc.mob.com/errconf
a####.u####.com/app_logs
and####.b####.qq.com/rqd/async?aid=####
api.chuma####.com/secure/?m=####&c=####&a=####
api.s####.mob.com/snsconf
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.mrecord
/data/data/####/.mrlock
/data/data/####/1002
/data/data/####/1004
/data/data/####/2IUr0GmZaZZOc2f1Jb4UtMqx0nA.197256234.tmp
/data/data/####/5088.mp3
/data/data/####/A5tD_8GUHvmEwM_P51uEEGMnuBE.298829200.tmp
/data/data/####/Alvin2.xml
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/ContextData.xml
/data/data/####/DV29tiqmt21COsk8cnYqI10dGXs.1117512287.tmp
/data/data/####/N9IybwIVxWR54iR-LGn46Hl6Zjo.-1717635150.tmp
/data/data/####/Pendant_60.png
/data/data/####/QuEf4REk9lof_IESgXpWZeKvxsY.578244100.tmp
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/_fN7GceSVQQqC9B9MCnKb02VuU4.776626189.tmp
/data/data/####/_jRGAWYQOlZilcbbA4G9GSyxge8.143207532.tmp
/data/data/####/amazed.png
/data/data/####/angel.png
/data/data/####/angry.png
/data/data/####/apple-touch-icon.png
/data/data/####/avatar_missing.png
/data/data/####/backgrounds_effect_1_000348.png
/data/data/####/banana.gif
/data/data/####/beaten.png
/data/data/####/bodies_1_000018.png
/data/data/####/bored.png
/data/data/####/bubble.png
/data/data/####/bubbleyellow.png
/data/data/####/bugly_db_-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/clown.png
/data/data/####/coin.png
/data/data/####/com.mallestudio.gugu.app.BETA_VALUES.xml
/data/data/####/com.mallestudio.gugu.app_preferences.xml
/data/data/####/com.mallestudio.gugu.common.model.SyncBean
/data/data/####/combined.min.js
/data/data/####/config.json
/data/data/####/confused.png
/data/data/####/cool.png
/data/data/####/crashrecord.xml
/data/data/####/cry.png
/data/data/####/currency_iconV2_50.png
/data/data/####/currency_iconV3_50.png
/data/data/####/currency_iconV4_50.png
/data/data/####/currency_iconV5_50.png
/data/data/####/device_id.xml.xml
/data/data/####/devil.png
/data/data/####/dialog.png
/data/data/####/dialogPointer.png
/data/data/####/dialogues_connered_1_000355.png
/data/data/####/dongtu-0101dg.png
/data/data/####/dongtu-0102dg.png
/data/data/####/dongtu-0103dg.png
/data/data/####/dongtu-0104dg.png
/data/data/####/dongtu-0201dg.png
/data/data/####/dongtu-0202dg.png
/data/data/####/dongtu-0203dg.png
/data/data/####/dongtu-0204dg.png
/data/data/####/dongtu-0301dg.png
/data/data/####/dongtu-0302dg.png
/data/data/####/dongtu-0303dg.png
/data/data/####/dongtu-0304dg.png
/data/data/####/dongtu-0401dg.png
/data/data/####/dongtu-0402dg.png
/data/data/####/dongtu-0403dg.png
/data/data/####/dongtu-0404dg.png
/data/data/####/dongtu-0501dg.png
/data/data/####/dongtu-0502dg.png
/data/data/####/dongtu-0503dg.png
/data/data/####/dongtu-0504dg.png
/data/data/####/dongtu-0601dg.png
/data/data/####/dongtu-0602dg.png
/data/data/####/dongtu-0603dg.png
/data/data/####/dongtu-0604dg.png
/data/data/####/dongtu-0701dg.png
/data/data/####/dongtu-0702dg.png
/data/data/####/dongtu-0703dg.png
/data/data/####/dongtu-0704dg.png
/data/data/####/doubtful.png
/data/data/####/dresses_female_1_002791.png
/data/data/####/emo.png
/data/data/####/emptystate_me_114.png
/data/data/####/emptystate_other_100.png
/data/data/####/error.json
/data/data/####/error_json.json
/data/data/####/error_server.json
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/faces_1_000032.png
/data/data/####/facialsets_1_002515.png
/data/data/####/favicon.ico
/data/data/####/fireball.png
/data/data/####/flags.png
/data/data/####/frozen.png
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/grin.png
/data/data/####/group.html
/data/data/####/guguapp_settings.xml
/data/data/####/guguapp_settings.xml.bak
/data/data/####/gx_sp.xml
/data/data/####/hairs_back_female_1_002768.png
/data/data/####/hairs_front_female_1_002765.png
/data/data/####/hands_gesture_1_002442.png
/data/data/####/home.html
/data/data/####/humans.txt
/data/data/####/icon.png
/data/data/####/icon@2x.png
/data/data/####/icon_Diamond_16.png
/data/data/####/icon_Diamond_20.png
/data/data/####/icon_Diamond_24.png
/data/data/####/icon_android.png
/data/data/####/icon_apple.png
/data/data/####/icon_coin_24.png
/data/data/####/icon_head_50.png
/data/data/####/icon_head_501.png
/data/data/####/icon_reward_110.png
/data/data/####/icon_time_end_24.png
/data/data/####/icon_time_long_24.png
/data/data/####/icon_time_short_24.png
/data/data/####/icon_v1_28.png
/data/data/####/icon_v2_28.png
/data/data/####/icon_v3_28.png
/data/data/####/icon_v4_28.png
/data/data/####/icon_v5_28.png
/data/data/####/icon_v6_28.png
/data/data/####/icon_v7_28.png
/data/data/####/icon_v8_28.png
/data/data/####/icon_vip_26.png
/data/data/####/icons.eot
/data/data/####/icons.otf
/data/data/####/icons.svg
/data/data/####/icons.ttf
/data/data/####/icons.woff
/data/data/####/icons.woff2
/data/data/####/image_missing.jpg
/data/data/####/image_missing_block.png
/data/data/####/image_missing_new.png
/data/data/####/index.html
/data/data/####/indian.png
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/karate.png
/data/data/####/kiss.png
/data/data/####/laugh.png
/data/data/####/left_button.png
/data/data/####/left_button_24.png
/data/data/####/libjiagu.so
/data/data/####/loading.gif
/data/data/####/loading.png
/data/data/####/logo_icon.png
/data/data/####/love.png
/data/data/####/menu_button.png
/data/data/####/menu_button_24.png
/data/data/####/menu_logo@2x.png
/data/data/####/millionaire.png
/data/data/####/mob_sdk_exception_1.xml
/data/data/####/mobile.zip
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/nerd.png
/data/data/####/news.html
/data/data/####/ninja.png
/data/data/####/octicons-local.ttf
/data/data/####/octicons.svg
/data/data/####/octicons.ttf
/data/data/####/octicons.woff
/data/data/####/party.png
/data/data/####/pirate.png
/data/data/####/punk.png
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qrfnf6n2ojTMzGxDJU8BvIijPT0.-1132879808.tmp
/data/data/####/rSeiEZSyhdh_sa_4b7egJ6_DKVw.1128056633.tmp
/data/data/####/rain.png
/data/data/####/ranking_copper_50.png
/data/data/####/ranking_gold_50.png
/data/data/####/ranking_sliver_50.png
/data/data/####/right_button.png
/data/data/####/right_button_24.png
/data/data/####/run.pid
/data/data/####/sad.png
/data/data/####/santa.png
/data/data/####/save.png
/data/data/####/save@2x.png
/data/data/####/script.js
/data/data/####/security_info
/data/data/####/server.json
/data/data/####/share@2x.png
/data/data/####/share_sdk_1.xml
/data/data/####/shoes_female_1_002809.png
/data/data/####/shy.png
/data/data/####/sick.png
/data/data/####/smile.png
/data/data/####/snow.png
/data/data/####/socks_female_1_002800.png
/data/data/####/speechless.png
/data/data/####/star_gold.png
/data/data/####/star_grey.png
/data/data/####/starglow.png
/data/data/####/starwhite.png
/data/data/####/style.css
/data/data/####/sweating.png
/data/data/####/tdata_BAI450
/data/data/####/tdata_BAI450.jar
/data/data/####/tdata_SLj922
/data/data/####/tdata_SLj922.jar
/data/data/####/testimage.jpg
/data/data/####/tongue.png
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/vampire.png
/data/data/####/wacky.png
/data/data/####/watermark.png
/data/data/####/wink.png
/data/data/####/xdS3DfnSeKWIdVhsFotx1-OGWoI.1254704709.tmp
/data/data/####/yhzy_ask_44.png
/data/media/####/.nomedia
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/chuman.apk
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.mallestudio.gugu.app.db
/data/media/####/tdata_BAI450
/data/media/####/tdata_SLj922
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh -c getprop
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 25405 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
getprop
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 25405 300 0

Loads the following dynamic libraries:

Bugly
getuiext2
hyphenate
hyphenate_av
hyphenate_av_recorder
imagepipeline
libjiagu
neh

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about network.

Gets information about phone status (number, IMEI, etc.).

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

Free trial