Adware.Gexin.18641

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) 2####.107.1.1:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) 2####.107.1.65:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) 1####.113.98.27:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) i####.t####.s####.com:80
TCP(TLS/1.0) dai.shu####.cn:443
TCP(TLS/1.0) log.h####.cn:443
TCP(TLS/1.0) api.shu####.cn:443
TCP(TLS/1.0) h####.cn:443
TCP(TLS/1.0) dualsta####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) 2####.107.1.97:443
TCP(TLS/1.0) dcc.shu####.cn:443
TCP(TLS/1.0) d####.shu####.cn:443
TCP(TLS/1.0) is.sn####.com:443
TCP(TLS/1.0) daa.shu####.cn:443
TCP cm-1####.ig####.com:5225
TCP cm-1####.ig####.com:5224
TCP cm-1####.ig####.com:5227
TCP 1####.134.98.34:5224

DNS requests:

7j####.c####.z0.####.com
a####.man.aliy####.com
and####.b####.qq.com
api.shu####.cn
c-h####.g####.com
cdn-sdk####.g####.com
cm-1####.ig####.com
cm-1####.ig####.com
cm-1####.ig####.com
d####.shu####.cn
daa.shu####.cn
dai.shu####.cn
dcc.shu####.cn
glory####.haoh####.cn
h####.cn
i####.t####.s####.com
is.sn####.com
log.h####.cn
pub-####.qin####.com
q.tinkerp####.com
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
u####.u####.com

HTTP GET requests:

cdn-sdk####.g####.com.####.com/tdata_agG322
cdn-sdk####.g####.com.####.com/tdata_dYz578
cdn-sdk####.g####.com.####.com/tdata_xEA084
sdk.o####.p####.####.com/api/addr.htm
ti####.c####.l####.####.com/config/hz-hzv6.conf
ti####.c####.l####.####.com/tdata_EDT369
ti####.c####.l####.####.com/tdata_LRe817

HTTP POST requests:

and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
i####.t####.s####.com/tracer/applist
sdk-ope####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####&d=####&k=####
sh.wagbr####.aliyun####.com/man/api?ak=####&s=####
ti####.c####.l####.####.com/111dc8e84b8d408a/<Package>_br1901092010_0195...

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1004
/data/data/####/111dc8e84b8d408a_version.info
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/MultiDex.lock
/data/data/####/a==7.5.4&&1.0.7.200_1573855427771_envelope.log
/data/data/####/aliclound_httpdns.db
/data/data/####/aliclound_httpdns.db-journal
/data/data/####/bugly_db_-journal
/data/data/####/c708ff38cbac
/data/data/####/com.free.dzmfxs_dna.xml
/data/data/####/com.free.dzmfxs_preferences.xml
/data/data/####/com.free.dzmfxs_prefs.xml
/data/data/####/com.free.dzmfxs_prefs.xml.bak
/data/data/####/com.x.y.1.xml
/data/data/####/com.x.y.2.xml
/data/data/####/crashrecord.xml
/data/data/####/downloader.db-journal
/data/data/####/du.lock
/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/####/httpdns_config_cache.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/ishugui.db-journal
/data/data/####/ishugui.shareInfo.xml
/data/data/####/ishugui.shareInfo.xml (deleted)
/data/data/####/libjiagu-1712271711.so
/data/data/####/local_crash_lock
/data/data/####/multidex.version.xml
/data/data/####/mz_push_preference.xml
/data/data/####/native_record_lock
/data/data/####/patch_server_config.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/####/security_info
/data/data/####/tdata_agG322
/data/data/####/tdata_agG322.jar
/data/data/####/tdata_dYz578
/data/data/####/tdata_dYz578.jar
/data/data/####/tdata_xEA084
/data/data/####/tdata_xEA084.jar
/data/data/####/ttopenadsdk.xml
/data/data/####/ttopensdk.db-journal
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/upload_device_data_time.xml
/data/data/####/version.lock
/data/media/####/..ccdid
/data/media/####/..ccvid
/data/media/####/._android.dat
/data/media/####/._system.dat
/data/media/####/.ccdid
/data/media/####/.ccvid
/data/media/####/.duid
/data/media/####/.n_a
/data/media/####/.n_b
/data/media/####/.n_c
/data/media/####/.n_d
/data/media/####/.nomedia
/data/media/####/.o_a
/data/media/####/2019-11-16.log.txt
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/_android.dat
/data/media/####/_system.dat
/data/media/####/app.db
/data/media/####/com.free.dzmfxs.bin
/data/media/####/com.free.dzmfxs.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/duid
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/journal.tmp
/data/media/####/n_a
/data/media/####/n_b
/data/media/####/n_c
/data/media/####/n_d
/data/media/####/o_a
/data/media/####/tdata_agG322
/data/media/####/tdata_dYz578
/data/media/####/tdata_xEA084
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /proc/cpuinfo
/system/bin/sh -c getprop
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.dzpush.core.GtPushService 24497 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
date
df
getprop
getprop ro.build.version.emui
getprop ro.letv.release.version
getprop ro.vivo.os.build.display.id
id
ip link
ls /dev/socket
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 MjVENTVBRDI4M0FBNDAwQUY0NjRDNzZENzEzQzA3QUQxMjM0NTY3OA== > <SD-Card>/../../../../../..<SD-Card>/.n_a
sh -c echo MjVENTVBRDI4M0FBNDAwQUY0NjRDNzZENzEzQzA3QUQxMjM0NTY3OA== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/n_a
sh -c echo NEE3RDFFRDQxNDQ3NEU0MDMzQUMyOUNDQjg2NTNEOUIwMDAw > <SD-Card>/../../../../../..<SD-Card>/.n_c
sh -c echo NEE3RDFFRDQxNDQ3NEU0MDMzQUMyOUNDQjg2NTNEOUIwMDAw > <SD-Card>/../../../../../..<SD-Card>/.n_d
sh -c echo NEE3RDFFRDQxNDQ3NEU0MDMzQUMyOUNDQjg2NTNEOUIwMDAw > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/n_c
sh -c echo NEE3RDFFRDQxNDQ3NEU0MDMzQUMyOUNDQjg2NTNEOUIwMDAw > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/n_d
sh -c echo QTQ1NDE4MDAxMEUyNjdDQUVEOEE0NjgzREMwRUIwQTEyMDE5MDgwMTAwMDE= > <SD-Card>/../../../../../..<SD-Card>/..ccvid
sh -c echo QTQ1NDE4MDAxMEUyNjdDQUVEOEE0NjgzREMwRUIwQTEyMDE5MDgwMTAwMDE= > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/.ccvid
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/._system.dat
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/.o_a
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_system.dat
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/o_a
sh -c echo QzlDODU0MTRDMkY2NkVDNjNENkEyOTIyOEI3ODI3OUJGNTVBQUY6OEZDNTVBOjAwNTgwOA== > <SD-Card>/../../../../../..<SD-Card>/._android.dat
sh -c echo QzlDODU0MTRDMkY2NkVDNjNENkEyOTIyOEI3ODI3OUJGNTVBQUY6OEZDNTVBOjAwNTgwOA== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_android.dat
sh -c echo RDBCNTk5QjlGNDU2MkI4NTU3MUE3Qzk0NzRCMzE2NjN5QWdTdXM0c3pzQ1RqbWFmOThUc0Q1YWd1M25vRzBvdDNVdlhkT1RVM2pVa3d3L1UyakdqTGZtVFdIb0hzeFNBUGJKVG1GaS80bHBJZEk3aUdXc3hob0tkdnRScm5EbmM0SEFMOEhjNnA2VWJxUG1TamY4Y2xmWHAwak1vOVlNaHpBOUVkcU9mSkcyeEFOcVlnMWlDRXVFYmFvY3dIb0JPVk9wMWFaTStydlVzYk5ja0lnbnY4VmQycVpQbWVWVzE= > <SD-Card>/../../../../../..<SD-Card>/..ccdid
sh -c echo RDBCNTk5QjlGNDU2MkI4NTU3MUE3Qzk0NzRCMzE2NjN5QWdTdXM0c3pzQ1RqbWFmOThUc0Q1YWd1M25vRzBvdDNVdlhkT1RVM2pVa3d3L1UyakdqTGZtVFdIb0hzeFNBUGJKVG1GaS80bHBJZEk3aUdXc3hob0tkdnRScm5EbmM0SEFMOEhjNnA2VWJxUG1TamY4Y2xmWHAwak1vOVlNaHpBOUVkcU9mSkcyeEFOcVlnMWlDRXVFYmFvY3dIb0JPVk9wMWFaTStydlVzYk5ja0lnbnY4VmQycVpQbWVWVzE= > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/.ccdid
sh -c echo RDEyMzAyOTBEMDdFQThDMkU4ODFGMzgxRjdCMkU4QkRlZmYwYTc5YjkyZDc0ZWNkYTkyYmNmODY2YjdmNDhleAo= > <SD-Card>/../../../../../..<SD-Card>/.duid
sh -c echo RDEyMzAyOTBEMDdFQThDMkU4ODFGMzgxRjdCMkU4QkRlZmYwYTc5YjkyZDc0ZWNkYTkyYmNmODY2YjdmNDhleAo= > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/duid
sh -c echo RTEwQURDMzk0OUJBNTlBQkJFNTZFMDU3RjIwRjg4M0UxMjM0NTY= > <SD-Card>/../../../../../..<SD-Card>/.n_b
sh -c echo RTEwQURDMzk0OUJBNTlBQkJFNTZFMDU3RjIwRjg4M0UxMjM0NTY= > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/n_b
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.dzpush.core.GtPushService 24497 300 0

Loads the following dynamic libraries:

Bugly
du
getuiext3
libjiagu-1712271711

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding
AES-GCM-NoPadding
desede-CBC-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 installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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