Adware.Gexin.1461

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) o####.map.b####.com:80
TCP(HTTP/1.1) nav.cn.ron####.com:80
TCP(HTTP/1.1) a####.b####.qq.com:8011
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
TCP(HTTP/1.1) dcs.zuihu####.com:8081
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) sni.c####.q####.####.net:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(TLS/1.0) 2####.58.212.206:443
TCP(TLS/1.0) s####.cn.ron####.com:443
TCP(TLS/1.0) hotfix####.aliy####.com:443
TCP(TLS/1.0) www.zhbbr####.com:443
TCP(TLS/1.0) api.map.b####.com:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224
TCP 1####.92.22.206:8618

DNS requests:

7j####.c####.z0.####.com
a####.b####.qq.com
a####.man.aliy####.com
a####.u####.com
aexcep####.b####.qq.com
and####.b####.qq.com
api.map.b####.com
c####.g####.ig####.com
c-h####.g####.com
dcs.zuihu####.com
hotfix####.aliy####.com
loc.map.b####.com
nav.cn.ron####.com
o####.map.b####.com
pub-####.qin####.com
s####.cn.ron####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
www.zhbbr####.com

HTTP GET requests:

sni.c####.q####.####.net/config/hz-hzv3.conf
sni.c####.q####.####.net/tdata_MkX219
sni.c####.q####.####.net/tdata_iGj879
t####.c####.q####.####.com/tdata_EDT356

HTTP POST requests:

a####.b####.qq.com:8011/rqd/async
a####.u####.com/app_logs
aexcep####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
c-h####.g####.com/api.php?format=####&t=####
dcs.zuihu####.com:8081/dcs/fetch-config
dcs.zuihu####.com:8081/dcs/upload-events
loc.map.b####.com/sdk.php
nav.cn.ron####.com/navipush.json
o####.map.b####.com/offline_loc
sdk.o####.p####.####.com/api.php?format=####&t=####
sh.wagbr####.aliyun####.com/man/api?ak=####&s=####

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/2465855.xml
/data/data/####/5b44dc007302
/data/data/####/Alvin2.xml
/data/data/####/COUNTLY_STORE.xml
/data/data/####/ContextData.xml
/data/data/####/Cookie.xml
/data/data/####/MultiDex.lock
/data/data/####/RongPush.xml
/data/data/####/Statistics.xml
/data/data/####/authStatus_com.zuihuibao;remote.xml
/data/data/####/bugly_db_legu-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/common_preference_file.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/firll.dat
/data/data/####/gal.db
/data/data/####/gal.db-journal
/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/####/libcuid.so
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/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/####/rong_version.db
/data/data/####/rong_version.db-journal
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/sp_sophix.xml
/data/data/####/statistics.db-journal
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_MkX219.tmp
/data/data/####/tdata_iGj879
/data/data/####/tdata_iGj879.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_general_config.xml.bak (deleted)
/data/data/####/umeng_it.cache
/data/data/####/version_code.xml
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.zuihuibao.bin
/data/media/####/com.zuihuibao.db
/data/media/####/conlts.dat
/data/media/####/journal.tmp
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_MkX219
/data/media/####/tdata_iGj879
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

/system/bin/sh -c getprop ro.aa.romver
/system/bin/sh -c getprop ro.board.platform
/system/bin/sh -c getprop ro.build.fingerprint
/system/bin/sh -c getprop ro.build.nubia.rom.name
/system/bin/sh -c getprop ro.build.rom.id
/system/bin/sh -c getprop ro.build.tyd.kbstyle_version
/system/bin/sh -c getprop ro.build.version.emui
/system/bin/sh -c getprop ro.build.version.opporom
/system/bin/sh -c getprop ro.gn.gnromvernumber
/system/bin/sh -c getprop ro.lenovo.series
/system/bin/sh -c getprop ro.lewa.version
/system/bin/sh -c getprop ro.meizu.product.model
/system/bin/sh -c getprop ro.miui.ui.version.name
/system/bin/sh -c getprop ro.vivo.os.build.display.id
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.PushService 24341 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.0.2.so
chmod 700 <Package Folder>/tx_shell/libufix.so
getprop ro.aa.romver
getprop ro.board.platform
getprop ro.build.fingerprint
getprop ro.build.nubia.rom.name
getprop ro.build.rom.id
getprop ro.build.tyd.kbstyle_version
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.gn.gnromvernumber
getprop ro.lenovo.series
getprop ro.lewa.version
getprop ro.meizu.product.model
getprop ro.miui.ui.version.name
getprop ro.vivo.os.build.display.id
getprop ro.yunos.version
logcat -d -v threadtime
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.PushService 24341 300 0

Loads the following dynamic libraries:

Bugly
RongIMLib
getuiext2
libnfix
libshella-2.9.0.2
libufix
locSDK7a
native-lib
nfix
ufix

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-PKCS5Padding
AES-CBC-PKCS7Padding
AES-GCM-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.

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