Adware.Gexin.13040

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(SSL/3.0) dxp.b####.com:443
TCP(TLS/1.0) api.zhuliqi####.com:443
TCP(TLS/1.0) h####.b####.com:443
TCP(TLS/1.0) and####.cli####.go####.com:443
TCP(TLS/1.0) 1####.217.20.78:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
and####.cli####.go####.com
api.zhuliqi####.com
c####.g####.ig####.com
c-h####.g####.com
dxp.b####.com
h####.b####.com
mtjso####.b####.com
pub-####.qin####.com
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

qin####.com.www.####.com/tdata_EDT369
t####.c####.q####.####.com/config/hz-hzv6.conf
t####.c####.q####.####.com/tdata_Cta775
t####.c####.q####.####.com/tdata_RyW085
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_lOE499

HTTP POST requests:

a####.u####.com/app_logs
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/7c62884cc30f
/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/####/__local_stat_full_cache.json
/data/data/####/__send_data_1556670985603
/data/data/####/__send_data_1556670985883
/data/data/####/baidu_mtj_sdk_record.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libcuid.so
/data/data/####/libjiagu-393502113.so
/data/data/####/mtj_auto.config
/data/data/####/mtj_autoTracker.js
/data/data/####/multidex.version.xml
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/pushservice__local_last_session.json
/data/data/####/pushservice__local_stat_cache.json
/data/data/####/run.pid
/data/data/####/tdata_Cta775
/data/data/####/tdata_Cta775.jar
/data/data/####/tdata_RyW085
/data/data/####/tdata_RyW085.jar
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_lOE499
/data/data/####/tdata_lOE499.jar
/data/data/####/trace_circle.data
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/media/####/.confd
/data/media/####/.confd-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.timestamp
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.zlqb.app.bin
/data/media/####/com.zlqb.app.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/tdata_Cta775
/data/media/####/tdata_RyW085
/data/media/####/tdata_YYn966
/data/media/####/tdata_lOE499
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GeTPushService 24173 300 0
cat /sys/class/net/wlan0/address
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
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GeTPushService 24173 300 0

Loads the following dynamic libraries:

getuiext2
libjiagu-393502113

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding

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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