Android.Backdoor.1393

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Backdoor.657.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) wb.110.ta####.com:80
TCP(HTTP/1.1) zhg.ali####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) ada####.m.ta####.com:80
TCP(HTTP/1.1) ad####.m.ta####.com:80
TCP(HTTP/1.1) ope####.m.ta####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(HTTP/1.1) 1####.254.116.117:80
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) nbsdk-b####.al####.com:443
TCP(TLS/1.0) t.hy####.com.cn:443
TCP(TLS/1.0) api.w####.com:443
TCP c####.g####.ig####.com:5226
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
acs4bai####.m.ta####.com
ad####.m.ta####.com
ada####.m.ta####.com
api.w####.com
av1.x####.com
c####.g####.ig####.com
c-h####.g####.com
i.t####.com
nbsdk-b####.al####.com
pi####.qq.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
t####.qq.com
t.hy####.com.cn
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/tdata_YYn966
t####.c####.q####.####.com/tdata_gVB977
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

ada####.m.ta####.com/rest/sur?ak=####&av=####&c=####&v=####&s=####&d=###...
c-h####.g####.com/api.php?format=####&t=####
pi####.qq.com/mstat/report/?index=####
sdk.o####.p####.####.com/api.php?format=####&t=####
wb.110.ta####.com/api/update.do
zhg.ali####.com/saveWb.json

Modified file system:

Creates the following files:

/data/data/####/.tpns.service.xml.xml
/data/data/####/.tpns.settings.xml.xml
/data/data/####/0a231bd8575dcf72.txt
/data/data/####/1529034986183_2497
/data/data/####/1529034986761_2497
/data/data/####/1529034988044_2278
/data/data/####/1529034988522_2278
/data/data/####/1529034988758_2278
/data/data/####/1529034989030_2278
/data/data/####/1529034989361_2278
/data/data/####/1529034990179_2278
/data/data/####/1529034991643_2278
/data/data/####/1529035032527_3758
/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/####/HMTAGENT_INFO.xml
/data/data/####/Pythagoras_phase.xml
/data/data/####/SGMANAGER_DATA2.tmp
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/UTCommon.xml
/data/data/####/aliTradeConfigSP.xml
/data/data/####/ap.Lock
/data/data/####/auth_sdk_device.xml
/data/data/####/cn.jpush.android.user.profile.xml
/data/data/####/cn.jpush.preferences.v2.xml
/data/data/####/com.yek.android.uniqlo_preferences.xml
/data/data/####/core_info
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hmt_agent_commonutill_com.yek.android.uniqlo.xml
/data/data/####/hmt_agent_commonutill_device_id.xml
/data/data/####/hmt_agent_online_setting.xml
/data/data/####/hmt_analytics
/data/data/####/hmt_analytics-journal
/data/data/####/hmt_init_savetime.xml
/data/data/####/hmt_irsuid.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu-184875453.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/####/openudid_prefs.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/####/sp.lock
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_config.xml (deleted)
/data/data/####/tbs_download_config.xml.bak
/data/data/####/tbs_download_config.xml.bak (deleted)
/data/data/####/tbslock.txt
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_gVB977
/data/data/####/tdata_gVB977.jar
/data/data/####/tdid.xml
/data/data/####/timestamp
/data/data/####/tpush.shareprefs.xml
/data/data/####/tpush.shareprefs.xml (deleted)
/data/data/####/tpush.shareprefs.xml.bak
/data/data/####/tpush.shareprefs.xml.bak (deleted)
/data/data/####/ut.db
/data/data/####/ut.db-journal
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/data/####/weibo_sdk_aid1
/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.yek.android.uniqlo.bin
/data/media/####/com.yek.android.uniqlo.db
/data/media/####/dd7893586a493dc3
/data/media/####/hid.dat
/data/media/####/tbslog.txt
/data/media/####/tdata_YYn966
/data/media/####/tdata_gVB977
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GTPushService 25187 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu-184875453.so
getprop
getprop ro.product.cpu.abi
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GTPushService 25187 300 0

Loads the following dynamic libraries:

getuiext2
jcore117
libjiagu-184875453
sec
sgmainso-5.1
sgsecuritybodyso-5.1
tpnsSecurity
ut_c_api
weibosdkcore

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
DES-CBC-PKCS5Padding
DES-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 APN settings.

Gains access to information about installed applications.

Adds tasks to the system scheduler.

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