Android.Gexin.636

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Gexin.1

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) gameboo####.f####.ali####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) c####.id####.com:13006
TCP(HTTP/1.1) wap.n.sh####.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) s####.e.qq.com:80
TCP(HTTP/1.1) d####.c####.l####.####.com:80
TCP(HTTP/1.1) mi.g####.qq.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) hotg####.jom####.com:80
TCP(HTTP/1.1) luna-im####.qq.com.####.com:80
UDP(NTP) 1.cn.p####.####.org:123
TCP(TLS/1.0) jic.talking####.com:443
TCP(TLS/1.0) app.x####.com:443
TCP sdk.o####.t####.####.com:5224
TCP cm-1####.g####.com:5226

DNS requests:

1.cn.p####.####.org
7j####.c####.z0.####.com
a.g####.b####.com
api.enjoy####.cn
app.x####.com
c####.id####.com
c-h####.g####.com
cdn-sdk####.g####.com
cm-1####.g####.com
gameboo####.f####.ali####.com
i####.cn
imgc####.qq.com
jic.talking####.com
m.b####.com
mi.g####.qq.com
mt####.go####.com
pg.x####.com
s####.e.qq.com
sdk-ope####.g####.com
sdk.c####.g####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

c####.id####.com:13006/server/dadata?packageName=####&channel=####&versi...
cdn-sdk####.g####.com.####.com/tdata_EDB102
cdn-sdk####.g####.com.####.com/tdata_Ivn104
cdn-sdk####.g####.com.####.com/tdata_UsE952
cdn-sdk####.g####.com.####.com/tdata_XYj468
d####.c####.l####.####.com/config/hzv9.conf
gameboo####.f####.ali####.com/prefs/channel_adv
gameboo####.f####.ali####.com/prefs/findrec
gameboo####.f####.ali####.com/prefs/gamerec
gameboo####.f####.ali####.com/prefs/rootrec
gameboo####.f####.ali####.com/prefs/rootrec_oversea
gameboo####.f####.ali####.com/prefs/wifirec
gameboo####.f####.ali####.com/prefs/wifirec_oversea
hotg####.jom####.com/ch/1019428d/20200730.xml
luna-im####.qq.com.####.com/qzone/biz/gdt/mod/android/AndroidAllInOne/pr...
mi.g####.qq.com/gdt_mview.fcg?posw=####&spsa=####&posh=####&count=####&r...
sdk.o####.p####.####.com/api/addr.htm
ti####.c####.l####.####.com/tdata_LfA935
ti####.c####.l####.####.com/tdata_xxG415
wap.n.sh####.com/api?action=####&from=####&token=####&type=####

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
s####.e.qq.com/activate
s####.e.qq.com/msg
sdk-ope####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/data/####/-1162244101-688019473
/data/data/####/-225080737-86820045
/data/data/####/-2250807371006253894
/data/data/####/.jg.ic
/data/data/####/2205.yaqcookie
/data/data/####/333985744-1271011292
/data/data/####/333985744924410184
/data/data/####/333985744962273371
/data/data/####/8f79d618d14e
/data/data/####/BuglySdkInfos.xml
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/TDCloudSettingsConfig86517D8A18FD42A1AA56E16FF446706E.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDtcagent.db
/data/data/####/TDtcagent.db-journal
/data/data/####/com.biubiujiasu.com_preferences.xml
/data/data/####/config.xml
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/dexMethod.94151578.dat
/data/data/####/dotools_config.xml
/data/data/####/game_db-journal
/data/data/####/gamelist
/data/data/####/gamepkglist
/data/data/####/gdaemon_20161017
/data/data/####/gdt_plugin.jar
/data/data/####/gdt_plugin.jar.sig
/data/data/####/gdt_plugin.tmp
/data/data/####/gdt_plugin.tmp.sig
/data/data/####/gdt_suid
/data/data/####/gkt-journal
/data/data/####/icon_build_events.xml
/data/data/####/init.pid
/data/data/####/init_c.pid
/data/data/####/libjiagu-105065546.so
/data/data/####/libyaqbasic.94151578.so
/data/data/####/libyaqpro.94151578.so
/data/data/####/mpush_app.db-journal
/data/data/####/mpush_gateway_preferences_file
/data/data/####/mpush_version_preferences_file
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/rec_config.xml
/data/data/####/run.pid
/data/data/####/sdkCloudSetting.cfg
/data/data/####/sdkCloudSetting.sig
/data/data/####/td.lock
/data/data/####/tdata_Ivn104
/data/data/####/tdata_Ivn104.jar
/data/data/####/tdata_UsE952
/data/data/####/tdata_UsE952.jar
/data/data/####/tdata_XYj468
/data/data/####/tdata_XYj468.jar
/data/data/####/tdid.xml
/data/data/####/tdlock.txt
/data/data/####/update_lc
/data/data/####/whitelist
/data/data/####/yaqsdkcookie
/data/media/####/.tcookieid
/data/media/####/app.db
/data/media/####/com.biubiujiasu.com.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/gkt
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/tdata_Ivn104
/data/media/####/tdata_UsE952
/data/media/####/tdata_XYj468
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /proc/cpuinfo
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24910 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
mount
sh
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24910 300 0

Loads the following dynamic libraries:

libjiagu-105065546
libyaqbasic.94151578
libyaqpro.94151578

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-CFB-NoPadding
AES-ECB-PKCS5Padding
AES-ECB-PKCS7Padding
RSA-ECB-PKCS1Padding

Accesses the ITelephony private interface.

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.

Gets information about running apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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