Adware.Gexin.4424

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) c-h####.g####.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) 2####.107.1.65:80
TCP(HTTP/1.1) beacon####.aliy####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) 2####.107.1.1:80
TCP(TLS/1.0) 2####.107.1.97:443
TCP(TLS/1.0) na61-####.wagbr####.non####.####.com:443
TCP(TLS/1.0) ada####.m.ta####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) fe####.zha####.com:443
TCP(TLS/1.0) sh.wagbr####.ta####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227

DNS requests:

7j####.c####.z0.####.com
a####.man.aliy####.com
ada####.ut.ta####.com
adas####.ut.ta####.com
bcfeed####.ta####.com
beacon####.aliy####.com
c####.g####.ig####.com
c-h####.g####.com
fe####.zha####.com
log.u####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
y####.al####.com

HTTP GET requests:

t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_eOt091

HTTP POST requests:

beacon####.aliy####.com/beacon/fetch/config/byappkey
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####
sh.wagbr####.aliyun####.com/man/api?ak=####&s=####

Modified file system:

Creates the following files:

/data/anr/traces.txt
/data/data/####/0a231bd8575dcf72.txt
/data/data/####/21c22f492aba3de8.lock
/data/data/####/930a31b34bd52c08.lock
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/Q0VSVC5SU0EK.txtadc
/data/data/####/SGMANAGER_DATA2.tmp
/data/data/####/UTCommon.xml
/data/data/####/ab914f43b8296c2c.lock
/data/data/####/agnes.xml
/data/data/####/agnes.xml.bak (deleted)
/data/data/####/aliclound_httpdns.db
/data/data/####/aliclound_httpdns.db-journal
/data/data/####/ap.Lock
/data/data/####/com.zhaopin.ihr_preferences.xml
/data/data/####/core_info
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNTk2Mzc3NTc4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNTk2NDM2MjA4;
/data/data/####/dW1weF9zaGFyZV8xNTQxNTk2NDM2ODk0;
/data/data/####/dW1weF9zaGFyZV8xNTQxNTk2NDM2OTM3;
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/httpdns_config_cache.xml
/data/data/####/i==1.2.0&&2.3.0_1541596436281_envelope.log
/data/data/####/ihr.xml
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu-556527601.so
/data/data/####/libsgmain_315446400000.dex
/data/data/####/libsgmainso-5.3.38.so.tmp
/data/data/####/libsgsecuritybodyso-5.3.27.so.tmp
/data/data/####/lock.lock
/data/data/####/multidex.version.xml
/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/####/share.db-journal
/data/data/####/sp.lock
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_eOt091
/data/data/####/tdata_eOt091.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_common_config.xml.bak
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/ut.db
/data/data/####/ut.db-journal
/data/data/####/ywPrefsTools.xml
/data/data/####/zlstscCache
/data/data/####/zlstscCache-journal
/data/media/####/.nomedia
/data/media/####/Alvin2.xml
/data/media/####/Alvin2.xml (deleted)
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.zhaopin.ihr.bin
/data/media/####/com.zhaopin.ihr.db
/data/media/####/dd7893586a493dc3
/data/media/####/hid.dat
/data/media/####/nim_sdk.log
/data/media/####/tdata_YYn966
/data/media/####/tdata_eOt091
/data/media/####/test.log

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
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.common.gt.GTService 24495 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu-556527601.so
getprop
ls /sys/class/thermal
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.common.gt.GTService 24495 300 0

Loads the following dynamic libraries:

getuiext2
libjiagu-556527601
sgmainso-5.3
sgsecuritybodyso-5.3
ut_c_api
weexjsc

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
DES-CBC-PKCS5Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

Gains access to telephone information (number, IMEI, etc.).

Gains access to information about installed applications.

Adds tasks to the system scheduler.

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