Adware.Gexin.10209

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) reso####.msg.xi####.net:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(HTTP/1.1) c####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) k####.eas####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) ap####.g####.com:80
TCP(HTTP/1.1) t.eas####.com:80
TCP(TLS/1.0) g####.g####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) 2####.58.211.110:443
TCP(TLS/1.0) regi####.xm####.gl####.####.com:443
TCP(TLS/1.0) u.zhug####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227
TCP app.c####.gl####.####.net:5222

DNS requests:

7j####.c####.z0.####.com
ap####.g####.com
app.c####.gl####.####.net
b####.g####.com
b####.g####.com
c####.g####.com
c####.g####.com
c####.g####.ig####.com
c-h####.g####.com
g####.g####.com
k####.eas####.com
log.u####.com
plb####.u####.com
pub-####.qin####.com
regi####.xm####.gl####.####.com
reso####.msg.xi####.net
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
t.eas####.com
u####.u####.com
u.zhug####.com

HTTP GET requests:

k####.eas####.com/v1/visitors/tenants/14268?sdkVersion=####&appKey=####&...
qin####.com.www.####.com/tdata_EDT369
reso####.msg.xi####.net/gslb/?ver=####&type=####&conpt=####&uuid=####&li...
t####.c####.q####.####.com/tdata_Jga153
t####.c####.q####.####.com/tdata_Wqf010
t####.c####.q####.####.com/tdata_bca864
t####.c####.q####.####.com/tdata_bdZ859
t####.c####.q####.####.com/tdata_duV457
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

ap####.g####.com/bd
c####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####&d=####&k=####
t.eas####.com/import

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/3092e7a0884e
/data/data/####/MultiDex.lock
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/XMPushServiceConfig.xml
/data/data/####/a==7.5.4&&4.9.0_1552591960257_envelope.log
/data/data/####/analytics-android-com.xiangshang.xiangshang.xml
/data/data/####/com.xiangshang.xiangshang.tmp
/data/data/####/com.xiangshang.xiangshang;pushservice
/data/data/####/com.xiangshang.xiangshang;pushservicea345766853...c9.xml
/data/data/####/com.xiangshang.xiangshang_preferences.xml
/data/data/####/com.xiangshang.xiangshanga3457668537346f6af32c2...c9.xml
/data/data/####/config.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUyNTkxOTU3ODkx;
/data/data/####/dW1weF9zaGFyZV8xNTUyNTkxOTYwNjYx;
/data/data/####/dW1weF9zaGFyZV8xNTUyNTkxOTYwNjk5;
/data/data/####/device_id.xml.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/geofencing.db
/data/data/####/geofencing.db-journal
/data/data/####/getui_sp.xml
/data/data/####/gin.db-journal
/data/data/####/gkt-journal
/data/data/####/gt_sp.xml
/data/data/####/gtc.db-journal
/data/data/####/gx_sp.xml
/data/data/####/gy.db-journal
/data/data/####/httpclient-req--1985740901.cache
/data/data/####/httpclient-req--1985740901.cache (deleted)
/data/data/####/i==1.2.0&&4.9.0_1552591957895_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/kefuinfo.xml
/data/data/####/libjiagu-504279585.so
/data/data/####/mipush.xml
/data/data/####/mipush_account.xml
/data/data/####/mipush_extra.xml
/data/data/####/mipush_oc.xml
/data/data/####/mipush_region
/data/data/####/mipush_region.lock
/data/data/####/multidex.version.xml
/data/data/####/pref_registered_pkg_names.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/####/run.pid
/data/data/####/share.db
/data/data/####/share.db-journal
/data/data/####/sp_client_report_status.xml
/data/data/####/sp_guide_register.xml
/data/data/####/tdata_Jga153
/data/data/####/tdata_Jga153.jar
/data/data/####/tdata_Wqf010
/data/data/####/tdata_Wqf010.jar
/data/data/####/tdata_bca864
/data/data/####/tdata_bca864.jar
/data/data/####/tdata_bdZ859
/data/data/####/tdata_bdZ859-1432369640.tmp
/data/data/####/tdata_bdZ859.jar
/data/data/####/tdata_duV457
/data/data/####/tdata_duV457.jar
/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/####/webview.db-journal
/data/data/####/xs_user_data.xml
/data/data/####/zhuge
/data/data/####/zhuge-journal
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.xiangshang.xiangshang.bin
/data/media/####/com.xiangshang.xiangshang.db
/data/media/####/com.xiangshang.xiangshang_.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/gtdid.db
/data/media/####/tdata_Jga153
/data/media/####/tdata_Wqf010
/data/media/####/tdata_bca864
/data/media/####/tdata_bdZ859
/data/media/####/tdata_duV457
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /proc/cpuinfo
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.common.service.GeTuiPushService 25539 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
ls /
ls /sys/class/thermal
mount
sh
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.common.service.GeTuiPushService 25539 300 0

Loads the following dynamic libraries:

getuiext3
hyphenate
libjiagu-504279585

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-ECB-PKCS5Padding

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 accounts associated with the device (Google, Facebook, etc.).

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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