Adware.Gexin.730

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) 1####.114.114.114:53
UDP(DNS) <Google DNS>
TCP(HTTP/1.1) 2####.130.54.229:80
TCP(HTTP/1.1) m####.chinane####.com:80
TCP(HTTP/1.1) 1####.131.87.16:80
TCP(HTTP/1.1) 1####.232.29.248:80
TCP(HTTP/1.1) 2####.243.212.25:80
TCP(HTTP/1.1) 1####.131.87.17:80
TCP(HTTP/1.1) 1####.231.99.203:80
TCP(HTTP/1.1) 1####.160.146.169:80
TCP(HTTP/1.1) 4####.93.83.165:80
TCP(TLS/1.0) 1####.75.75.84:443
TCP(TLS/1.0) 1####.11.248.2:443
TCP(TLS/1.0) 1####.75.76.62:443
TCP(TLS/1.0) 1####.11.172.28:443
TCP(TLS/1.0) 2####.205.158.55:443
TCP(TLS/1.0) 1####.185.170.65:443
TCP(TLS/1.0) 1####.98.220.22:443
TCP(TLS/1.0) 1####.11.172.41:443
TCP(TLS/1.0) s####.j####.cn:443
TCP(TLS/1.0) 1####.235.46.191:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226
TCP 1####.185.170.65:6666
TCP maa####.chinane####.com:6666
TCP 1####.202.151.8:7000
UDP s.j####.cn:19000

DNS requests:

c####.g####.ig####.com
i####.mystee####.com
m####.chinane####.com
maa####.chinane####.com
mfs.mystee####.com
mystee####.steelp####.com
s####.j####.cn
s.j####.cn
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
sis.j####.io

HTTP POST requests:

m####.chinane####.com/file

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/081f5b0f4cf7d68a78dc1d05635a4a5b.0.tmp
/data/data/####/081f5b0f4cf7d68a78dc1d05635a4a5b.1.tmp
/data/data/####/187c738def5e13c778d88847aef55771.0.tmp
/data/data/####/187c738def5e13c778d88847aef55771.1.tmp
/data/data/####/22107fe06064b639d06b27c9943956b9.0.tmp
/data/data/####/22107fe06064b639d06b27c9943956b9.1.tmp
/data/data/####/283fd2c7060ded79138c8827f5a57e26.0.tmp
/data/data/####/283fd2c7060ded79138c8827f5a57e26.1.tmp
/data/data/####/294fbe0f2e9f54a93d05efcfa358c50c.0.tmp
/data/data/####/294fbe0f2e9f54a93d05efcfa358c50c.1.tmp
/data/data/####/3018adc2-7091-463f-9baf-b442c0d0b4af
/data/data/####/37d4f830de546de63fdc730c9fb0ba23.0.tmp
/data/data/####/37d4f830de546de63fdc730c9fb0ba23.1.tmp
/data/data/####/3a0b8d3513d4470e5b9aed6146e3cdf72459d9b12f795fc....0.tmp
/data/data/####/3e0ea6cad72092d5a32d7fc3eb8c647c.0.tmp
/data/data/####/3e0ea6cad72092d5a32d7fc3eb8c647c.1.tmp
/data/data/####/486934c71b750a0a7a65e586761b99fe.0.tmp
/data/data/####/486934c71b750a0a7a65e586761b99fe.1.tmp
/data/data/####/4d91d3cd6c0a2d52e007ec6f5a3012a757e22e565d48bd0....0.tmp
/data/data/####/4e0b98976a075e4d98ae2b5fd2a6dfa9b854aa1d8d88967....0.tmp
/data/data/####/5104b6a3fef722e69ea121b107fe00f1.0.tmp
/data/data/####/5104b6a3fef722e69ea121b107fe00f1.1.tmp
/data/data/####/53ee7385-7b7b-4894-b550-28f77799394a
/data/data/####/5832A903131E4D508BCC62610F63544A.mmap2
/data/data/####/69f0914d4d5afa14dd2a186baf50a0ab.0.tmp
/data/data/####/69f0914d4d5afa14dd2a186baf50a0ab.1.tmp
/data/data/####/761c6b64aa9bd8d9521ebf39ea783f58175a57b67461570....0.tmp
/data/data/####/7c1cbcc462ed07abb96969c673384d39.0.tmp
/data/data/####/7c1cbcc462ed07abb96969c673384d39.1.tmp
/data/data/####/83891a24801781afc358c010e4455feca31954323826108....0.tmp
/data/data/####/ApplicationCache.db-journal
/data/data/####/JPushSA_Config.xml
/data/data/####/LKME_Server_Request_Queue.xml
/data/data/####/MultiDex.lock
/data/data/####/NBSAnrStore.xml
/data/data/####/NBSCrashStore.xml
/data/data/####/SteelphoneAndroidCommon.xml
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/a2251952-5946-4ede-b025-c56b56c71545
/data/data/####/a==7.5.1&&4.7.4_1532871459375_envelope.log
/data/data/####/appPackageNames_v2
/data/data/####/bbcbb195-575a-4623-b9a3-7c4452fd6c54
/data/data/####/cn.jpush.android.user.profile.xml
/data/data/####/cn.jpush.preferences.v2.rid.xml
/data/data/####/cn.jpush.preferences.v2.xml
/data/data/####/com.networkbench.agent.impl.v2_com.mysteel.andr...ne.xml
/data/data/####/d28779de-b282-4403-99d6-d55bfee05672
/data/data/####/d4014b45022740b893a77d2c08641005.0.tmp
/data/data/####/d4014b45022740b893a77d2c08641005.1.tmp
/data/data/####/d827f9aeee72d6ebb6f0e779ab621d0c.0.tmp
/data/data/####/d827f9aeee72d6ebb6f0e779ab621d0c.1.tmp
/data/data/####/d86179cd49104a6e3abb94b8366256af.0.tmp
/data/data/####/d86179cd49104a6e3abb94b8366256af.1.tmp
/data/data/####/daf1dcb8d948f8a9f093a272a904c26701ef0a45444afb4....0.tmp
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/e35e17467d1314fc194b7ca5d5b9218f.0.tmp
/data/data/####/e35e17467d1314fc194b7ca5d5b9218f.1.tmp
/data/data/####/eff1dbda2380a75ab9d95e17b40b1183.0.tmp
/data/data/####/eff1dbda2380a75ab9d95e17b40b1183.1.tmp
/data/data/####/event_com.mysteel.android.steelphone.log
/data/data/####/event_com.mysteel.android.steelphone;pushcore.log
/data/data/####/event_com.mysteel.android.steelphone;pushservice.log
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f252c4dc3c44ba1e664e77d0b3b1ab5e.0.tmp
/data/data/####/f252c4dc3c44ba1e664e77d0b3b1ab5e.1.tmp
/data/data/####/f4fcddd8-2bc1-4a01-96c6-eacae31502c9
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/fba63f7250fe4c1703e38495c2cfca37.0.tmp
/data/data/####/fba63f7250fe4c1703e38495c2cfca37.1.tmp
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/i==1.2.0&&4.7.4_1532871458049_envelope.log
/data/data/####/index
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/jpush_device_info.xml
/data/data/####/jpush_local_notification.db
/data/data/####/jpush_local_notification.db-journal
/data/data/####/jpush_local_notification.db-wal
/data/data/####/jpush_stat_cache.json
/data/data/####/jpush_stat_cache_history.json
/data/data/####/jpush_statistics.db
/data/data/####/jpush_statistics.db-journal
/data/data/####/jpush_statistics.db-shm (deleted)
/data/data/####/jpush_statistics.db-wal
/data/data/####/libjiagu1033754980.so
/data/data/####/linkedme_referral_shared_pref.xml
/data/data/####/lock.tmp
/data/data/####/matosdk_preference.xml
/data/data/####/matosdk_preference_pushcore.xml
/data/data/####/matosdk_preference_pushservice.xml
/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/####/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/####/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/####/wspx
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.lm_device_id
/data/media/####/.nomedia
/data/media/####/.push_deviceid
/data/media/####/.umm.dat
/data/media/####/081f5b0f4cf7d68a78dc1d05635a4a5b.0.tmp
/data/media/####/294fbe0f2e9f54a93d05efcfa358c50c.0.tmp
/data/media/####/5104b6a3fef722e69ea121b107fe00f1.0.tmp
/data/media/####/5832A903131E4D508BCC62610F63544A_20180729.xlog
/data/media/####/69f0914d4d5afa14dd2a186baf50a0ab.0.tmp
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.mysteel.android.steelphone.bin
/data/media/####/com.mysteel.android.steelphone.db
/data/media/####/d827f9aeee72d6ebb6f0e779ab621d0c.0.tmp
/data/media/####/journal.tmp
/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>/<Package>.push.GetuiPushService 26044 300 0
cat /sys/class/net/eth0/address
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu1033754980.so
ls /
ls /sys/class/thermal
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GetuiPushService 26044 300 0

Loads the following dynamic libraries:

com.maa
getuiext2
jcore121
libjiagu1033754980
marsxlog
securityenv
stlport_shared

Uses the following algorithms to encrypt data:

AES-CBC-PKCS7Padding
AES-ECB-PKCS7Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-NoPadding

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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