Adware.Gexin.6105

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) pub-####.qin####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) cloud####.fengkon####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) amdc####.m.ta####.com:80
TCP(HTTP/1.1) f####.fengkon####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(TLS/1.0) 2####.107.1.97:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) api.mobig####.cn:443
TCP 2####.119.215.163:80
TCP 1####.121.49.105:7007
TCP c####.g####.ig####.com:5227
TCP sdk.o####.t####.####.com:5224
UDP s.j####.cn:19000

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
a####.man.aliy####.com
ag####.m.ta####.com
amdc####.m.ta####.com
and####.b####.qq.com
api.mobig####.cn
c####.g####.ig####.com
c-h####.g####.com
cloud####.fengkon####.com
f####.fengkon####.com
pi####.qq.com
plb####.u####.com
pub-####.qin####.com
s.j####.cn
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
sis.j####.io
u####.u####.com
umen####.m.ta####.com
umengj####.m.ta####.com

HTTP GET requests:

pub-####.qin####.com/tdata_EDT356
t####.c####.q####.####.com/tdata_bca864
t####.c####.q####.####.com/tdata_fyR930
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

a####.exc.mob.com/errconf
amdc####.m.ta####.com/amdc/mobileDispatch?appkey=####&deviceId=####&plat...
and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
cloud####.fengkon####.com/v2/device/conf
f####.fengkon####.com/v2/device/profile
pi####.qq.com/mstat/report/?index=####
sdk.o####.p####.####.com/api.php?format=####&t=####
sh.wagbr####.aliyun####.com/man/api?ak=####&s=####

File system changes:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.duid
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.vpl_lock
/data/data/####/1004
/data/data/####/201812081222516.v1.crash
/data/data/####/201812081223100.v1.crash
/data/data/####/201812081223318.v1.crash
/data/data/####/201812081223460.v1.crash
/data/data/####/201812081223585.v1.crash
/data/data/####/201812081223692.v1.crash
/data/data/####/201812081223738.v1.crash
/data/data/####/201812081223849.v1.crash
/data/data/####/201812081223906.v1.crash
/data/data/####/201812081223995.v1.crash
/data/data/####/3f29484a-1355-4faf-8f33-79156c4c21e2
/data/data/####/6cdad6b685c6
/data/data/####/ACCS_SDK.xml
/data/data/####/ACCS_SDK_CHANNEL.xml
/data/data/####/ACCS_SDK_CHANNEL.xml.bak
/data/data/####/Agoo_AppStore.xml
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/DaemonServer
/data/data/####/JPushSA_Config.xml
/data/data/####/MessageStore.db
/data/data/####/MessageStore.db-journal
/data/data/####/MsgLogStore.db
/data/data/####/MsgLogStore.db-journal
/data/data/####/MultiDex.lock
/data/data/####/ThrowalbeLog.db
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/XianShiConfig.xml
/data/data/####/accs.db
/data/data/####/accs.db-journal
/data/data/####/agoo.pid
/data/data/####/bugly_db_
/data/data/####/bugly_db_-journal
/data/data/####/cloudms.conf.xml
/data/data/####/cn.jpush.android.user.profile.xml
/data/data/####/cn.jpush.android.user.profile.xml (deleted)
/data/data/####/cn.jpush.preferences.v2.rid.xml
/data/data/####/cn.jpush.preferences.v2.xml
/data/data/####/com.koramgame.xianshi.kl.mid.world.ro.xml
/data/data/####/com.koramgame.xianshi.kl_dna.xml
/data/data/####/com.koramgame.xianshi.kl_preferences.xml
/data/data/####/com.koramgame.xianshi.kl_prefs.xml
/data/data/####/com.koramgame.xianshi.kl_prefs.xml.bak
/data/data/####/com.koramgame.xianshi.kl_prefs.xml.bak (deleted)
/data/data/####/com.shumei.xml
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjcxNzcyNjUz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjcxNzgwMjE1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjcxNzgzOTI0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjcxNzk1MTIx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjcxNzkwMjA5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjcxODA3ODg1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjcxODAzNjc5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjcxODIxMTU1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjcxODIzMjcz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjcxODMyMzcy;
/data/data/####/domain_1
/data/data/####/du.lock
/data/data/####/e9e50fab-e4aa-40a3-ad6d-67c0bf18202b
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/httpdns_config_cache.xml
/data/data/####/i==1.2.0&&2.0.0_1544271772676_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jpush_device_info.xml
/data/data/####/jpush_stat_cache.json
/data/data/####/jpush_stat_cache_history.json
/data/data/####/libjiagu219289082.so
/data/data/####/local_crash_lock
/data/data/####/message_accs_db
/data/data/####/message_accs_db-journal
/data/data/####/mob_commons_1
/data/data/####/mob_sdk_exception_1
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/pri_tencent_analysis.db_com.koramgame.xianshi.kl
/data/data/####/pri_tencent_analysis.db_com.koramgame.xianshi.kl-journal
/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/####/security_info
/data/data/####/seq.xml
/data/data/####/sys_log_1544271770845334.txt (deleted)
/data/data/####/tdata_bca864
/data/data/####/tdata_bca864.jar
/data/data/####/tdata_fyR930
/data/data/####/tdata_fyR930.jar
/data/data/####/tencent_analysis.db_com.koramgame.xianshi.kl
/data/data/####/tencent_analysis.db_com.koramgame.xianshi.kl-journal
/data/data/####/tracker.db
/data/data/####/tracker.db-journal
/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_general_config.xml.bak
/data/data/####/umeng_general_config.xml.bak (deleted)
/data/data/####/umeng_it.cache
/data/data/####/umeng_message_state.xml
/data/data/####/webview.db
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/media/####/._android.dat
/data/media/####/._system.dat
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.artc_lock
/data/media/####/.cca.dat
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/data/media/####/.lesd_lock
/data/media/####/.mn_-1464060969
/data/media/####/.nomedia
/data/media/####/.pkg_lock
/data/media/####/.pkgs_lock
/data/media/####/.push_deviceid
/data/media/####/.rc_lock
/data/media/####/.slw
/data/media/####/.ss_lock
/data/media/####/.thumbcache_idx0
/data/media/####/.umm.dat
/data/media/####/00c358806dab4e398029a3da32246f54
/data/media/####/54d83b78f09e4644a8bf9168490674aa
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/_android.dat
/data/media/####/_system.dat
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.koramgame.xianshi.kl.bin
/data/media/####/com.koramgame.xianshi.kl.db
/data/media/####/duid
/data/media/####/shumei.txt
/data/media/####/tdata_bca864
/data/media/####/tdata_fyR930
/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/sh -c getprop
<Package Folder>/files/DaemonServer -s <Package Folder>/lib/ -n runServer -p startservice -n <Package>/com.taobao.accs.ChannelService --user 0 -f <Package Folder> -t 600 -c agoo.pid -P <Package Folder> -K 1009527 -U tb_accs_eudemon_1.1.3 -L http://agoodm.m.taobao.com/agoo/report -D {"package":"<Package>","appKey":"umeng:5b35a673b27b0a436d00002c","utdid":"XAu3nPht58oDAGdzx1GCVtg2","sdkVersion":"221"} -I agoodm.m.taobao.com -O 80 -T -Z
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.base.service.GPushService 25376 300 0
cat /proc/self/cgroup
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
date
df
getprop
id
ip link
logcat -c
logcat -d -v threadtime
logcat -d -v time
ls /dev/socket
ls /sys/class/thermal
ls /system/fonts
mkdir -p <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/
mount
ps
service call iphonesubinfo 1
sh
sh -c cat /proc/meminfo
sh -c cat /sys/class/net/eth0/address
sh -c cd /proc/;cat cpuinfo
sh -c cd /proc/net/ && cat arp
sh -c cd /proc/self/;cat status
sh -c echo NkQ4RDlDNDA4MzExQTQxRkJBNzgyQkU3REE2OUQ2RUUzYjE2NmM0NDMyMTU0MTJhOGE2NTI4NWM2MTIzMmY0NQo= > <SD-Card>/../../../../../..<SD-Card>/.duid
sh -c echo NkQ4RDlDNDA4MzExQTQxRkJBNzgyQkU3REE2OUQ2RUUzYjE2NmM0NDMyMTU0MTJhOGE2NTI4NWM2MTIzMmY0NQo= > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/duid
sh -c echo OUQwRDUzOUU5NzRGOTdDN0FENDFFNDZDOUU0RUZEMjAxQURCNDA6MkU5RUZBOjQ5MzM2MA== > <SD-Card>/../../../../../..<SD-Card>/._android.dat
sh -c echo OUQwRDUzOUU5NzRGOTdDN0FENDFFNDZDOUU0RUZEMjAxQURCNDA6MkU5RUZBOjQ5MzM2MA== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_android.dat
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/._system.dat
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_system.dat
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.base.service.GPushService 25376 300 0

Loads the following dynamic libraries:

Bugly
MtaNativeCrash_v2
du
getuiext3
jcore125
libjiagu219289082
smsdk
tnet-3.1

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-NoPadding
AES-GCM-NoPadding
DES-ECB-NoPadding

Uses special library to hide executable bytecode.

Accesses camera interface.

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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