Adware.Gexin.9884

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) qin####.com.www.####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) et2-na6####.wagbr####.ali####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) rp-na####.ron####.com:80
TCP(TLS/1.0) yu.ismy####.net:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) s####.cn.ron####.com:443
TCP sdk.o####.t####.####.com:5224
TCP 1####.92.22.164:8634
TCP c####.g####.ig####.com:5226

DNS requests:

7j####.c####.z0.####.com
c####.g####.ig####.com
c-h####.g####.com
log.u####.com
nav.cn.ron####.com
plb####.u####.com
pub-####.qin####.com
s####.cn.ron####.com
s####.u####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.u####.com
yu.ismy####.net

HTTP GET requests:

et2-na6####.wagbr####.ali####.####.com/bar/get/5af3b38df29d98760f0000c8/...
qin####.com.www.####.com/tdata_EDT369
t####.c####.q####.####.com/tdata_Cta775
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_lOE499
t####.c####.q####.####.com/tdata_nmo636
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
rp-na####.ron####.com/navipush.json
sdk.o####.p####.####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1552089984903.log
/data/data/####/68cbfe207100
/data/data/####/Alvin2.xml
/data/data/####/COUNTLY_STORE.xml
/data/data/####/ContextData.xml
/data/data/####/FwLog.xml
/data/data/####/RongPush.xml
/data/data/####/RongPushAppConfig.xml
/data/data/####/Statistics.xml
/data/data/####/com.tanmei.tanyu-journal
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUyMDg5OTg0MzA1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUyMDkwMDUxMzE3;
/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/####/i==1.2.0&&1.0_1552089984992_envelope.log
/data/data/####/i==1.2.0&&1.0_1552090051375_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu321683734.so
/data/data/####/locale.config.xml
/data/data/####/push.pid
/data/data/####/push_daemon
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/tanyu.xml
/data/data/####/tdata_Cta775
/data/data/####/tdata_Cta775.jar
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_lOE499
/data/data/####/tdata_lOE499.jar
/data/data/####/tdata_nmo636
/data/data/####/tdata_nmo636.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_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/07bb8a4780c55416f3f649f8674897a3.0.tmp
/data/media/####/07bb8a4780c55416f3f649f8674897a3.1.tmp
/data/media/####/1958a4ae5efa8e9a5f03c6688a7d6817.0.tmp
/data/media/####/1958a4ae5efa8e9a5f03c6688a7d6817.1.tmp
/data/media/####/21316afac0f8c425da29c4bce858bef7.0.tmp
/data/media/####/21316afac0f8c425da29c4bce858bef7.1.tmp
/data/media/####/82ed6411414cb1a68b3956ea6092a4ab.0.tmp
/data/media/####/82ed6411414cb1a68b3956ea6092a4ab.1.tmp
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/acd16ad036af56f3dc0c82913dd1680c.0.tmp
/data/media/####/acd16ad036af56f3dc0c82913dd1680c.1.tmp
/data/media/####/app.db
/data/media/####/b511d777f62702a739cf3ca8e6b262e1.0.tmp
/data/media/####/b511d777f62702a739cf3ca8e6b262e1.1.tmp
/data/media/####/c3a9bcaf3dbc7a4c7edfc0e4f2296c46.0.tmp
/data/media/####/c3a9bcaf3dbc7a4c7edfc0e4f2296c46.1.tmp
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.tanmei.tanyu.bin
/data/media/####/com.tanmei.tanyu.db
/data/media/####/d1875966c06b8692235ce61ff7befadb.0.tmp
/data/media/####/d1875966c06b8692235ce61ff7befadb.1.tmp
/data/media/####/e1e2370aebebdbecf4a74695fc05f7a3.0.tmp
/data/media/####/e1e2370aebebdbecf4a74695fc05f7a3.1.tmp
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/rong_sdk.log
/data/media/####/rong_sdk_debug.log
/data/media/####/sysid.dat
/data/media/####/tdata_Cta775
/data/media/####/tdata_YYn966
/data/media/####/tdata_lOE499
/data/media/####/tdata_nmo636
/data/media/####/test.log

Miscellaneous:

Executes the following 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/chmod 777 <Package Folder>/app_lib/x86/push_daemon
<Package Folder>/app_lib/x86/push_daemon <Package> io.rong.push.PushService /storage/emulated/0/.rongLock
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.message.getui.GetuiService 24610 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu321683734.so
getprop ro.miui.ui.version.name
ls /sys/class/thermal
mount

Loads the following dynamic libraries:

RongIMLib
getuiext2
libjiagu321683734
pl_droidsonroids_gif
push

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
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.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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