Adware.Gexin.4541

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) norma-e####.m####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) logshan####.suixi####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) peiz####.suixi####.com:80
TCP(HTTP/1.1) ad####.m.ta####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) ada####.m.ta####.com:80
TCP(SSL/3.0) 69a3f4c####.bug####.com:443
TCP(TLS/1.0) nbsdk-b####.al####.com:443
TCP(TLS/1.0) ope####.m.ta####.com:443
TCP(TLS/1.0) 69a3f4c####.bug####.com:443
TCP(TLS/1.0) na61-####.wagbr####.ali####.####.com:443
UDP 1####.168.108.1:137
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224

DNS requests:

69a3f4c####.bug####.com
7j####.c####.z0.####.com
acs4bai####.m.ta####.com
ad####.m.ta####.com
ada####.m.ta####.com
c####.g####.ig####.com
c-h####.g####.com
logshan####.suixi####.com
nbsdk-b####.al####.com
norma-e####.m####.com
peiz####.suixi####.com
pub-####.qin####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
y####.al####.org

HTTP GET requests:

ad####.m.ta####.com/rest/gc2?ak=####&av=####&c=####&d=####&sv=####&t=###...
norma-e####.m####.com/android/exchange/getpublickey.do
pub-####.qin####.com/tdata_EDT356
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_GKE879
t####.c####.q####.####.com/tdata_IfO862

HTTP POST requests:

ada####.m.ta####.com/rest/sur?ak=####&av=####&c=####&v=####&s=####&d=###...
c-h####.g####.com/api.php?format=####&t=####
logshan####.suixi####.com/maltdiary_log/install
logshan####.suixi####.com/maltdiary_log/online
norma-e####.m####.com/push/android/external/add.do
peiz####.suixi####.com/app_config/queryConfig
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/0a231bd8575dcf72.txt
/data/data/####/0adc5e1bddfac43be7397a7b620a4fe73071bb01238edea....0.tmp
/data/data/####/12fbe4a8f15af61349ba8479e16ce6a10798f0770e75f97....0.tmp
/data/data/####/483f4b106bc3
/data/data/####/85f0413e5d22edf8cb0ffb79523060fa8b1d05a06d61096....0.tmp
/data/data/####/9f210f9cd98d7c8ba2730926d5cc9f1941ee964014ef21a....0.tmp
/data/data/####/AlibcLinkPartner.xml
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/Q0VSVC5SU0EK.txt8e5
/data/data/####/SGMANAGER_DATA2.tmp
/data/data/####/SG_INNER_DATA
/data/data/####/UTCommon.xml
/data/data/####/_okhttputils.db-journal
/data/data/####/aliTradeConfigSP.xml
/data/data/####/ap.Lock
/data/data/####/auth_sdk_device.xml
/data/data/####/b31eded3f5e39b0980829fe825018741c24c30488646bb8....0.tmp
/data/data/####/com.maiya.suixingou_preferences.xml
/data/data/####/com.x.y.1.xml
/data/data/####/com.x.y.2.xml
/data/data/####/d3e01aac45e26f6c4a2c49d7a5de254542bb147e0e9bb15....0.tmp
/data/data/####/dc3516237c2aff5b83
/data/data/####/f5e12e5c9d9b06efec62a7286731653c1241b99796d9b83....0.tmp
/data/data/####/f7f3b67d0ec7a9c36f7dd6602eeab52c0a7e0d6a1d76c1a....0.tmp
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/gxcoreframework_app_setting.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu1085314503.so
/data/data/####/libsgmainso-5.4.67.so.tmp.2277
/data/data/####/lock.lock
/data/data/####/multidex.version.xml
/data/data/####/mz_push_preference.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/####/sgFile.lock
/data/data/####/sp.lock
/data/data/####/tdata_GKE879
/data/data/####/tdata_GKE879.jar
/data/data/####/tdata_IfO862
/data/data/####/tdata_IfO862.jar
/data/data/####/timestamp
/data/data/####/ut.db
/data/data/####/ut.db-journal
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromium.db-journal (deleted)
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/media/####/2018-11-08.log.txt
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.maiya.suixingou.bin
/data/media/####/com.maiya.suixingou.db
/data/media/####/dd7893586a493dc3
/data/media/####/hid.dat
/data/media/####/tdata_GKE879
/data/media/####/tdata_IfO862
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/dc3516237c2aff5b83
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.songheng.components.push.business.DfttPushService 24943 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop ro.build.version.release
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.songheng.components.push.business.DfttPushService 24943 300 0

Loads the following dynamic libraries:

Bugtags
Crash
getuiext3
libjiagu1085314503
sgmainso-5.4
ut_c_api

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

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.

Gets information about running apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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