Adware.Gexin.2098

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) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) 1####.254.116.117:80
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(TLS/1.0) 2####.58.212.174:443
TCP(TLS/1.0) sh.wagbr####.alibaba####.com:443
TCP(TLS/1.0) w####.u51.com:443
TCP(TLS/1.0) redi####.network####.com:443
TCP(TLS/1.0) c####.51zhan####.com:443
TCP(TLS/1.0) zhg.ali####.com:443
TCP(TLS/1.0) hotfix####.aliy####.com:443
TCP(TLS/1.0) dc1.network####.com:443
TCP c####.g####.ig####.com:5225
TCP t####.qq.com:443
TCP sdk.o####.t####.####.com:5224
TCP t####.qq.com:8080

DNS requests:

7j####.c####.z0.####.com
a####.man.aliy####.com
a####.u51.com
ab.u####.com
c####.51zhan####.com
c####.g####.ig####.com
c-h####.g####.com
dc1.network####.com
hotfix####.aliy####.com
loc.map.b####.com
no####.u51.com
pi####.qq.com
redi####.network####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
t####.qq.com
u####.u####.com
w####.u51.com
y####.al####.com

HTTP GET requests:

t####.c####.q####.####.com/tdata_XXT616
t####.c####.q####.####.com/tdata_udK373
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
loc.map.b####.com/offline_loc
loc.map.b####.com/sdk.php
pi####.qq.com/mstat/report/?index=####
sdk.o####.p####.####.com/api.php?format=####&t=####
sh.wagbr####.aliyun####.com/man/api?ak=####&s=####

Modified file system:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.tpns.service.xml.xml
/data/data/####/.tpns.settings.xml.xml
/data/data/####/.tpush_mta.xml
/data/data/####/0a231bd8575dcf72.txt
/data/data/####/21c22f492aba3de8.lock
/data/data/####/51zhangdan.db-journal
/data/data/####/930a31b34bd52c08.lock
/data/data/####/97299c64aa2d17b5fe97edcada598c6b559f871e27fa818....0.tmp
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/Q0VSVC5SU0EK.txt81f
/data/data/####/SGMANAGER_DATA2.tmp
/data/data/####/a==7.5.3&&9.22.0_1535969162554_envelope.log
/data/data/####/abTestConf.xml
/data/data/####/app_config.xml
/data/data/####/b88167f74f093298fa9ab876b836e22d.0
/data/data/####/com.networkbench.agent.impl.v2_com.zhangdan.app.xml
/data/data/####/com.networkbench.agent.impl.v2_com.zhangdan.app.xml.bak
/data/data/####/com.zhangdan.app_preferences.xml
/data/data/####/common.xml
/data/data/####/common_log.xml
/data/data/####/dc374f27dd9f7231
/data/data/####/device_id.xml
/data/data/####/device_user_active_share_preference.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/fire-eye-db-journal
/data/data/####/firll.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libjiagu1599324093.so
/data/data/####/libsgmainso-5.3.38.so.tmp
/data/data/####/libsgsecuritybodyso-5.3.27.so.tmp
/data/data/####/libweexjsb.so
/data/data/####/lock.lock
/data/data/####/multidex.version.xml
/data/data/####/notify-sp-name.xml
/data/data/####/ofl.config
/data/data/####/ofl_location.db
/data/data/####/ofl_location.db-journal
/data/data/####/ofl_statistics.db
/data/data/####/ofl_statistics.db-journal
/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/####/sp.lock
/data/data/####/sp_sophix.xml
/data/data/####/tdata_XXT616
/data/data/####/tdata_XXT616.jar
/data/data/####/tdata_udK373
/data/data/####/tdata_udK373.jar
/data/data/####/tpush.shareprefs.xml
/data/data/####/u51_hybrid.xml
/data/data/####/u51_superspeed.xml
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.gzip
/data/media/####/.nomedia
/data/media/####/6ecc1a41-a115-4abd-a09d-92ab5b02cfb9_1535969131353.gzip
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/DeviceId
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.zhangdan.app.bin
/data/media/####/com.zhangdan.app.db
/data/media/####/conlts.dat
/data/media/####/dd7893586a493dc3
/data/media/####/f4033683-8516-4a03-ac1b-73cd4a8e9a5e_1535969145140.gzip
/data/media/####/gj_origin_channel
/data/media/####/hid.dat
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/ller.dat
/data/media/####/log.txt
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_XXT616
/data/media/####/tdata_udK373
/data/media/####/test.0
/data/media/####/test.log
/data/media/####/time.txt
/data/media/####/tmplog_1535969145140_1535969162211.txt
/data/media/####/yoh.dat

Miscellaneous:

Executes next shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/xbin/which su
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GetuiPushService 24575 300 0
app_process /system/bin com.android.commands.pm.Pm list packages -3
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu1599324093.so
chmod 777 /data/user/0/<Package>/files/dc374f27dd9f7231
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.flyme.published
getprop ro.miui.ui.version.name
getprop ro.smartisan.version
getprop ro.vivo.os.version
pm list packages -3
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GetuiPushService 24575 300 0
sh <Package Folder>/lib/libxguardian.so <Package>,2100269962;<Package>,2100269962; 55654 203.205.128.130 [{ idx :0, ts :%d, et :2000, si :0, ui : <IMEI> , ky : Axg%lu , mid : bbafc731708be728f14d714236f7c027caf1a8d1 , ev :{ ov : 18 , sr : 600*752 , md : <System Property> , lg : en , sv : 3.12 , mf : unknown , apn : %s }}] 0 18

Loads the following dynamic libraries:

PassGuard
getuiext2
libjiagu1599324093
locSDK6a
sgmainso-5.3
sgsecuritybodyso-5.3
tpnsSecurity
weexjsc

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-CFB8-NoPadding
RSA-ECB-PKCS1PADDING
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-CFB8-NoPadding
DES-ECB-PKCS5Padding

Uses elevated priveleges.

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 APN settings.

Gains access to information about installed applications.

Gains access to information about accounts (Google, Facebook, etc.) registered on the device.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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