Adware.Gexin.6953

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) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) scs.opensp####.cn:80
TCP(HTTP/1.1) d####.opensp####.cn:80
TCP(HTTP/1.1) s####.e.qq.com:80
TCP(HTTP/1.1) mi.g####.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(TLS/1.0) h####.b####.com:443
TCP(TLS/1.0) www.t####.cn:443
TCP(TLS/1.0) s####.e.qq.com:443
TCP(TLS/1.0) eco####.me####.com.####.com:443
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
c####.g####.ig####.com
c-h####.g####.com
d####.opensp####.cn
eco####.me####.com
h####.b####.com
mi.g####.qq.com
s####.e.qq.com
scs.opensp####.cn
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
www.t####.cn

HTTP GET requests:

mi.g####.qq.com/gdt_mview.fcg?posw=####&spsa=####&posh=####&count=####&r...
t####.c####.q####.####.com/tdata_OPb601
t####.c####.q####.####.com/tdata_YYn966
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
d####.opensp####.cn/index.php/clientrequest/clientcollect/isCollect
s####.e.qq.com/activate
s####.e.qq.com/msg
scs.opensp####.cn/scs?cmd=####&logver=####&size=####
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/2279.yaqcookie
/data/data/####/BuglySdkInfos.xml
/data/data/####/CookiePersistence.xml
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/Meiqia.xml
/data/data/####/MultiDex.lock
/data/data/####/__Baidu_Stat_SDK_SendRem.xml
/data/data/####/__local_ap_info_cache.json
/data/data/####/__local_last_session.json
/data/data/####/__local_stat_cache.json
/data/data/####/__send_data_1545543728747
/data/data/####/b1ff9108e675b7ece98ddb477e263b85d19a529cc8f391e....0.tmp
/data/data/####/b747b23a3a1da7d5a27aa0ddd5a8651cfa33d0df21c3ead....0.tmp
/data/data/####/b915d23e397311db2a199a181b2e496ebbf346d4a606a94....0.tmp
/data/data/####/baidu_mtj_sdk_record.xml
/data/data/####/com.ahsdznkj.courier_preferences.xml
/data/data/####/com.iflytek.id.xml
/data/data/####/com.iflytek.msc.xml
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/dexMethod.36117467.dat
/data/data/####/f42cf685f25c14601d62be7d0b2c47a23c201dcd05396a6....0.tmp
/data/data/####/gdaemon_20161017
/data/data/####/gdt_config.cfg
/data/data/####/gdt_plugin.jar
/data/data/####/gdt_plugin.jar.sig
/data/data/####/gdt_stat.db
/data/data/####/gdt_stat.db-journal
/data/data/####/gdt_suid
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/iflytek_state_com.ahsdznkj.courier.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libjiagu-2139799861.so
/data/data/####/libyaqbasic.36117467.so
/data/data/####/libyaqpro.36117467.so
/data/data/####/meiqia.db
/data/data/####/meiqia.db-journal
/data/data/####/multidex.version.xml
/data/data/####/multidex_progress_100.txt
/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/####/sdkCloudSetting.cfg
/data/data/####/sdkCloudSetting.sig
/data/data/####/sugar_courier.db
/data/data/####/sugar_courier.db-journal
/data/data/####/tdata_OPb601
/data/data/####/tdata_OPb601.jar
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/update_lc
/data/data/####/yaqsdkcookie
/data/media/####/.confd
/data/media/####/.confd-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.timestamp
/data/media/####/app.db
/data/media/####/com.ahsdznkj.courier.bin
/data/media/####/com.ahsdznkj.courier.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/iflyworkdir_test
/data/media/####/tdata_OPb601
/data/media/####/tdata_YYn966
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.service.GeTuiPushService 25033 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop ro.build.display.id
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.miui.ui.version.name
getprop ro.smartisan.version
getprop ro.vivo.os.version

Loads the following dynamic libraries:

crash_analysis
getuiext2
libjiagu-2139799861
libyaqbasic.36117467
libyaqpro.36117467
msc

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-PKCS7Padding
RSA-ECB-PKCS1Padding

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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