Adware.Gexin.257

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) sh.wagbr####.alibaba####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) sni.c####.q####.####.net:80
TCP(TLS/1.0) sh.wagbr####.alibaba####.com:443
TCP(TLS/1.0) 58you####.oss-cn-####.aliy####.com:443
TCP(TLS/1.0) www.58you####.com:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224

DNS requests:

58you####.oss-cn-####.aliy####.com
7j####.c####.z0.####.com
c####.g####.ig####.com
c-h####.g####.com
log.u####.com
plb####.u####.com
pub-####.qin####.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
www.58you####.com

HTTP GET requests:

sh.wagbr####.alibaba####.com/bar/get/5a9383b98f4a9d4e8c00005e/?ud_get=####
sni.c####.q####.####.net/config/hz-hzv3.conf
sni.c####.q####.####.net/tdata_SBh025
sni.c####.q####.####.net/tdata_ZKm258
t####.c####.q####.####.com/tdata_EDT356

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/0cbd09c7c8c20f0f1e3f90e7a23ffffd.0.tmp
/data/data/####/0cbd09c7c8c20f0f1e3f90e7a23ffffd.1.tmp
/data/data/####/1531836474280.log
/data/data/####/1531836474280.log.bak
/data/data/####/391d4809f84196790841950122db86cb126b8466014eff6....0.tmp
/data/data/####/45b011af1e27e8c9c295558a323c91ed.0.tmp
/data/data/####/45b011af1e27e8c9c295558a323c91ed.1.tmp
/data/data/####/67c4921f80eabc28ea90d5b45faa4a82.0.tmp
/data/data/####/67c4921f80eabc28ea90d5b45faa4a82.1.tmp
/data/data/####/67f5edd2f8fa
/data/data/####/857483cf8a95aef348a8035225f653aa.0.tmp
/data/data/####/857483cf8a95aef348a8035225f653aa.1.tmp
/data/data/####/98e7b4bb8b378258bb7eeaf0dba39a70.0.tmp
/data/data/####/98e7b4bb8b378258bb7eeaf0dba39a70.1.tmp
/data/data/####/MultiDex.lock
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/a==7.4.0&&1.0.8_1531836474229_envelope.log
/data/data/####/b2c0f3946fb88dc4e29d940a18833fdea39b97d5b0f1488....0.tmp
/data/data/####/b34c753d6cf0e2570f54f5ed5897afaa.0.tmp
/data/data/####/b34c753d6cf0e2570f54f5ed5897afaa.1.tmp
/data/data/####/d19ac6834edf5cd942229fc248bf43c2.0.tmp
/data/data/####/d19ac6834edf5cd942229fc248bf43c2.1.tmp
/data/data/####/d8122289c8cdcae1b6d86d2dd7c9f4b7caae4edc5993652....0.tmp
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/e3dd0d2415b171430ac9ec3a3cdbdc93247f1945d326e1c....0.tmp
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f59ebadb8b9e214b7fa59eacdc07759f.0.tmp
/data/data/####/f59ebadb8b9e214b7fa59eacdc07759f.1.tmp
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/f_000004
/data/data/####/f_000005
/data/data/####/f_000006
/data/data/####/f_000007
/data/data/####/f_000008
/data/data/####/f_000009
/data/data/####/f_00000a
/data/data/####/f_00000b
/data/data/####/f_00000c
/data/data/####/f_00000d
/data/data/####/f_00000e
/data/data/####/f_00000f
/data/data/####/f_000010
/data/data/####/f_000011
/data/data/####/fa609a0eb22e8bfaffba25354bd685a9.0.tmp
/data/data/####/fa609a0eb22e8bfaffba25354bd685a9.1.tmp
/data/data/####/fa7a0c16c556f14eb92de4e5584b2e1e22b0ce9ed93b6a9....0.tmp
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/i==1.2.0&&1.0.8_1531836473513_envelope.log
/data/data/####/index
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu-2084632491.so
/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/####/tdata_SBh025
/data/data/####/tdata_SBh025.jar
/data/data/####/tdata_ZKm258
/data/data/####/tdata_ZKm258.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/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/yourong_share_date.xml
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.umm.dat
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/tdata_SBh025
/data/media/####/tdata_ZKm258
/data/media/####/test.log
/data/media/####/yourong58.com.bin
/data/media/####/yourong58.com.db

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>/<Package>.service.GTuiPushService 24261 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu-2084632491.so
ls /
ls /sys/class/thermal
mount

Loads the following dynamic libraries:

getuiext2
libjiagu-2084632491

Uses the following algorithms to encrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS7Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
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.

Displays its own windows over windows of other applications.

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