Adware.Gexin.22121

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) 8####.8.4.4:53
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) a####.shu####.cn:80
TCP(HTTP/1.1) center####.k####.com:80
TCP(HTTP/1.1) cgi.con####.qq.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) d####.c####.l####.####.com:80
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) vide####.k####.com:8980
TCP(TLS/1.0) d####.shu####.cn:443
TCP(TLS/1.0) dai.shu####.cn:443
TCP(TLS/1.0) 1####.217.168.202:443
TCP(TLS/1.0) a####.shu####.cn:443
TCP(TLS/1.0) cs.im####.com:443
TCP(TLS/1.0) and####.cli####.go####.com:443
TCP(TLS/1.0) cgi.con####.qq.com:443
TCP(TLS/1.2) 2####.58.208.99:443
TCP(TLS/1.2) 1####.217.168.202:443
TCP cm-1####.g####.com:5225
TCP sdk.o####.t####.####.com:5224

DNS requests:

a####.shu####.cn
and####.b####.qq.com
and####.cli####.go####.com
c-h####.g####.com
cdn-sdk####.g####.com
center####.k####.com
cgi.con####.qq.com
cm-1####.g####.com
cs.im####.com
d####.shu####.cn
daa.shu####.cn
dai.shu####.cn
e1.im####.com
loc.map.b####.com
m####.go####.com
p####.show####.com
sdk.c####.g####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
vide####.k####.com
www.show####.com

HTTP GET requests:

cdn-sdk####.g####.com.####.com/tdata_CoH340
cdn-sdk####.g####.com.####.com/tdata_GKM601
cdn-sdk####.g####.com.####.com/tdata_jFf739
cdn-sdk####.g####.com.####.com/tdata_pKX830
center####.k####.com/time
cgi.con####.qq.com:443/qqconnectopen/openapi/policy_conf?status_os=####&...
cs.im####.com:443/json/enmoji20180911.json
cs.im####.com:443/v2/analytics/setting?accessToken=####&appId=####&sign=...
cs.im####.com:443/v2/devices/channel/s10202830104400?skeyver=####&is_and...
cs.im####.com:443/v2/resource/version?skeyver=####&is_android=####&acces...
d####.c####.l####.####.com/config/hzv9.conf
vide####.k####.com:8980/univ/intervalquery?accesskey=####&expire=####&un...

HTTP POST requests:

a####.shu####.cn/report?v=####&c=####&e=####
a####.shu####.cn:443/report?v=####&c=####&e=####
and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
cs.im####.com:443/armyservice/armygroupinfo/getarmygroupjoin.do?skeyver=...
cs.im####.com:443/inf/serv_activate.php?skeyver=####&is_android=####&app...
cs.im####.com:443/inf/serv_get_notif_medium.php?skeyver=####&is_android=...
cs.im####.com:443/v2/analytics/files?accessToken=####&appId=####&sign=##...
cs.im####.com:443/v3/cloudconf
cs.im####.com:443/v3/profile/android
d####.shu####.cn:443/report?v=####&t=####&e=####
dai.shu####.cn:443/report?v=####&c=####&e=####
loc.map.b####.com/sdk.php
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/.jg.store.report_cf
/data/data/####/.jgck
/data/data/####/1004
/data/data/####/1641065727364.zip
/data/data/####/1641065733875.zip
/data/data/####/KSYMediaLog-journal
/data/data/####/bugly_db_
/data/data/####/bugly_db_-journal
/data/data/####/classes.dex
/data/data/####/classes.dex;classes2.dex
/data/data/####/com.showself.ui_dna.xml
/data/data/####/com.showself.ui_prefs.xml
/data/data/####/com.showself.ui_prefs.xml.bak
/data/data/####/com.shumei.xml
/data/data/####/com.tencent.open.config.json.100294405
/data/data/####/crashrecord.xml
/data/data/####/du.lock
/data/data/####/fc_times.xml
/data/data/####/getui_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/input_emoji_json.xml
/data/data/####/libjiagu.so
/data/data/####/local_crash_lock
/data/data/####/local_crash_lock (deleted)
/data/data/####/md5_info.xml
/data/data/####/native_record_lock
/data/data/####/netType.xml
/data/data/####/pref_key.xml
/data/data/####/proc_auxv
/data/data/####/prop_data.xml
/data/data/####/push.pid
/data/data/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/resourcesdata.txt
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/security_info (deleted)
/data/data/####/seq.xml
/data/data/####/showself_guide.xml
/data/data/####/sp_device_id.xml
/data/data/####/tdata_CoH340
/data/data/####/tdata_CoH340.dex
/data/data/####/tdata_CoH340.dex.flock (deleted)
/data/data/####/tdata_CoH340.jar
/data/data/####/tdata_jFf739
/data/data/####/tdata_jFf739.jar
/data/data/####/tmpd8.db-journal
/data/data/####/tracker.db-journal
/data/data/####/tracker.txt
/data/media/####/._android.dat
/data/media/####/._system.dat
/data/media/####/.duid
/data/media/####/.thumbcache_idx0
/data/media/####/_android.dat
/data/media/####/_system.dat
/data/media/####/app.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.showself.ui.bin
/data/media/####/com.showself.ui.db
/data/media/####/com.tencent.mobileqq_connectSdk.22.01.01.22.log
/data/media/####/con.dat
/data/media/####/dfs31123g
/data/media/####/duid
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/showself_water_img_8.3.0.png
/data/media/####/shumei.txt
/data/media/####/tdata_CoH340
/data/media/####/tdata_jFf739
/data/media/####/tdata_pKX830
/data/misc/####/primary.prof

Miscellaneous:

Executes the following shell scripts:

cat /proc/self/cgroup
date
df
getprop
grep u0_a65
id
id -u
ip link
ls /system/fonts
mkdir -p <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/
ps
service call iphonesubinfo 1
sh -c echo NjE5RkU5NkY5OTk5NjM5RDVGQkZFMUREOTVBN0I5MkIxNzU5MWM2YWY4OTQ0NTkzOTU5YzlmYjQ5OTM1YzYyago= > <SD-Card>/../../../../../..<SD-Card>/.duid
sh -c echo NjE5RkU5NkY5OTk5NjM5RDVGQkZFMUREOTVBN0I5MkIxNzU5MWM2YWY4OTQ0NTkzOTU5YzlmYjQ5OTM1YzYyago= > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/duid
sh -c echo QjE1QzA4QTlDMjZBRUQ2QkU1MTREQ0M4NjA5NzlFQTRGRjBERDU6RTdCMzFEOjc1NTVBRA== > <SD-Card>/../../../../../..<SD-Card>/._android.dat
sh -c echo QjE1QzA4QTlDMjZBRUQ2QkU1MTREQ0M4NjA5NzlFQTRGRjBERDU6RTdCMzFEOjc1NTVBRA== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_android.dat
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/._system.dat
sh -c ps | grep u0_a65

Uses the following algorithms to encrypt data:

AES-GCM-NoPadding
DES
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-GCM-NoPadding
DES
DES-ECB-NoPadding

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 APN settings.

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.

Requests the system alert window permission.

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