Adware.Gexin.3431

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) a####.u####.com:80
TCP(HTTP/1.1) c####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) na61-####.wagbr####.non####.####.com:80
TCP(HTTP/1.1) api.j####.com:80
TCP(HTTP/1.1) ad####.m.ta####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) na61-####.wagbr####.ali####.####.com:80
TCP(HTTP/1.1) ope####.m.ta####.com:80
TCP(HTTP/1.1) ada####.m.ta####.com:80
TCP(TLS/1.0) 1####.217.17.142:443
TCP(TLS/1.0) nbsdk-b####.al####.com:443
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP(TLS/1.0) g####.g####.com:443
TCP(TLS/1.0) openins####.io:443
TCP(TLS/1.0) adt.x####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
acs4bai####.m.ta####.com
ad####.m.ta####.com
ada####.m.ta####.com
adt.x####.com
api.j####.com
av1.x####.com
b####.g####.com
c####.g####.com
c####.g####.ig####.com
c####.x####.com
c####.x####.com
c-h####.g####.com
g####.g####.com
i.t####.com
nbsdk-b####.al####.com
openins####.io
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
wb.110.ta####.com
y####.al####.com

HTTP GET requests:

ad####.m.ta####.com/rest/gc2?ak=####&av=####&c=####&d=####&sv=####&t=###...
ope####.m.ta####.com/gw-open/mtop.taobao.tbk.sdk.config/1.0/?data=####
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_MkX219
t####.c####.q####.####.com/tdata_iGj879

HTTP POST requests:

a####.u####.com/app_logs
ada####.m.ta####.com/rest/sur?ak=####&av=####&c=####&v=####&s=####&d=###...
api.j####.com/config/all
c####.g####.com/api.php?format=####&t=####
na61-####.wagbr####.ali####.####.com/api/update.do
na61-####.wagbr####.non####.####.com/saveWb.json
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/0a231bd8575dcf72.txt
/data/data/####/1539031838017_2285
/data/data/####/1539031838216_2285
/data/data/####/1539031838216_2285 (deleted)
/data/data/####/1539031839644_2285
/data/data/####/1539031839660_2285
/data/data/####/1539031840202_2285
/data/data/####/1539031840452_2285
/data/data/####/1539031840453_2285
/data/data/####/1539031840895_2285
/data/data/####/1539031841435_2285
/data/data/####/1539031841475_2285
/data/data/####/1539031842408_2285
/data/data/####/1539031843823_2332
/data/data/####/1539031843844_2332
/data/data/####/1539031844205_2332
/data/data/####/1539031844236_2332
/data/data/####/1539031844613_2332
/data/data/####/1539031845188_2332
/data/data/####/1539031845254_2332
/data/data/####/1539031846473_2285
/data/data/####/1539031846848_2285
/data/data/####/1539031847345_2285
/data/data/####/1539031849431_2285
/data/data/####/1539031850158_2285
/data/data/####/1539031896920_2285
/data/data/####/1539031896932_2285
/data/data/####/1539031899079_2332
/data/data/####/1539031899156_2332
/data/data/####/1539031901694_2285
/data/data/####/1919691303-883319372
/data/data/####/1d77ea041509fe06.lock
/data/data/####/21c22f492aba3de8.lock
/data/data/####/8ef9c457b3bbb403.lock
/data/data/####/930a31b34bd52c08.lock
/data/data/####/AlibcLinkPartner.xml
/data/data/####/Alvin2.xml
/data/data/####/Archimedes_p4
/data/data/####/Archimedes_p5
/data/data/####/ContextData.xml
/data/data/####/FM_config.xml
/data/data/####/Pythagoras_phase.xml
/data/data/####/SGMANAGER_DATA2.tmp
/data/data/####/TDCloudSettingsConfig9F588101159541A58D4A80894F0105D5.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_cloudcontrol1.xml
/data/data/####/TDpref_cloudcontrol2.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/TDpref_longtime1.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDpref_shorttime0.xml
/data/data/####/TDpref_shorttime1.xml
/data/data/####/TalingDataConfig9F588101159541A58D4A80894F0105D5.xml
/data/data/####/UTCommon.xml
/data/data/####/XNSDKStore1.0.xml
/data/data/####/XNclientid.xml
/data/data/####/XNmachineid.xml
/data/data/####/aliTradeConfigSP.xml
/data/data/####/ap.Lock
/data/data/####/auth_sdk_device.xml
/data/data/####/com.xg.bjkjby_preferences.xml
/data/data/####/exchangeIdentity.json
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gt_sp.xml
/data/data/####/gtc.db-journal
/data/data/####/gx_sp.xml
/data/data/####/gy.db-journal
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu641149968.so
/data/data/####/libsgmainso-5.1.81.so.tmp
/data/data/####/libsgsecuritybodyso-5.1.25.so.tmp
/data/data/####/lock.lock
/data/data/####/mPBE.xml
/data/data/####/multidex.version.xml
/data/data/####/newConfig.xml
/data/data/####/push.pid
/data/data/####/push_data.xml
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/sp.lock
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_iGj879
/data/data/####/tdata_iGj879.jar
/data/data/####/tdid.xml
/data/data/####/timestamp
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/ut.db
/data/data/####/ut.db-journal
/data/data/####/vendor_analy_data.xml
/data/data/####/vendor_share_data.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/data/####/xg_1000_ISME9754_guest8441177594959844277170817...ournal
/data/data/####/xnsdkconfig.xml
/data/data/####/xpush.xml
/data/data/####/xpush.xml.bak (deleted)
/data/media/####/.nomedia
/data/media/####/.tcookieid
/data/media/####/6c709c11d2d46a7b
/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.xg.bjkjby.bin
/data/media/####/com.xg.bjkjby.db
/data/media/####/com.xg.bjkjby_.db
/data/media/####/dd7893586a493dc3
/data/media/####/gtdid.db
/data/media/####/hid.dat
/data/media/####/qev8hk
/data/media/####/tdata_MkX219
/data/media/####/tdata_iGj879
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/service.GPushService 24270 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu641149968.so
getprop

Loads the following dynamic libraries:

getuiext2
libjiagu641149968
sgmainso-5.1
sgsecuritybodyso-5.1
ut_c_api

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-ECB-PKCS5Padding

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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