Adware.Gexin.2835

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) aexcep####.b####.qq.com:8011
TCP(HTTP/1.1) scs.opensp####.cn:80
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
TCP(HTTP/1.1) d####.opensp####.cn:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) h####.opensp####.cn:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(TLS/1.0) 2####.58.212.174:443
TCP(TLS/1.0) a####.1####.com:443
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) l####.tbs.qq.com:443
TCP(TLS/1.0) and####.cli####.go####.com:443

DNS requests:

a####.1####.com
a####.b####.qq.com
aexcep####.b####.qq.com
and####.b####.qq.com
and####.cli####.go####.com
api.map.b####.com
d####.opensp####.cn
h####.opensp####.cn
l####.tbs.qq.com
log.u####.com
plb####.u####.com
scs.opensp####.cn
sdk.o####.p####.####.com
u####.u####.com

HTTP GET requests:

h####.opensp####.cn/launchconfig?t=####&p=####

HTTP POST requests:

aexcep####.b####.qq.com:8011/rqd/async
aexcep####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
d####.opensp####.cn/index.php/clientrequest/clientcollect/isCollect
scs.opensp####.cn/scs?cmd=####&logver=####&size=####
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/MultiDex.lock
/data/data/####/WISDOM_TRANSIT_CONFIG.xml
/data/data/####/a==7.5.3&&1.1.0_1537443816844_envelope.log
/data/data/####/authStatus_com.zhcx.realtimebus.xml
/data/data/####/authStatus_com.zhcx.realtimebus;pushservice.xml
/data/data/####/bugly_db_legu-journal
/data/data/####/com.iflytek.id.xml
/data/data/####/com.iflytek.msc.xml
/data/data/####/core_info
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/getui_sp.xml
/data/data/####/i==1.2.0&&1.1.0_1537443816357_envelope.log
/data/data/####/i==1.2.0&&1.1.0_1537443864111_envelope.log
/data/data/####/ifly_launch_lib.xml
/data/data/####/iflytek_state_com.zhcx.realtimebus.xml
/data/data/####/info.xml
/data/data/####/init_c1.pid
/data/data/####/init_er.pid
/data/data/####/libcuid.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/mobclick_agent_user_com.zhcx.realtimebus.xml
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/security_info
/data/data/####/share.db-journal
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_config.xml.bak
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/um_pri.xml
/data/data/####/umdat.xml
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_common_location.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/xUtils_http_cookie.db
/data/data/####/xUtils_http_cookie.db-journal
/data/data/####/xUtils_http_cookie.db-shm (deleted)
/data/data/####/xUtils_http_cookie.db-wal
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.umm.dat
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/iflyworkdir_test
/data/media/####/sysid.dat
/data/media/####/tbslog.txt
/data/media/####/wisdomtransit-1537443815664.cr
/data/media/####/wisdomtransit-1537443858368.cr
/data/media/####/wisdomtransit-1537443863971.cr

Miscellaneous:

Executes next shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
/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
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.product.cpu.abi
getprop ro.vivo.os.build.display.id
getprop ro.yunos.version
logcat -d -v threadtime
ls /sys/class/thermal

Loads the following dynamic libraries:

BaiduMapSDK_base_v4_5_2
Bugly
getuiext2
libnfix
libshella-2.9.0.2
libufix
msc
nfix
ufix

Uses the following algorithms to encrypt data:

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

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.).

Displays its own windows over windows of other applications.

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