Android.Backdoor.1481

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) cdn.avazutr####.net:80
TCP(HTTP/1.1) a.e####.cn:80
TCP(HTTP/1.1) c####.360.cn:80
TCP(HTTP/1.1) g.x.cn.####.com:80
TCP(HTTP/1.1) www.ta####.com:80
TCP(HTTP/1.1) ap####.adi####.com:80
TCP(HTTP/1.1) cm.adi####.com:80
TCP(HTTP/1.1) tr####.up####.com:80
TCP(HTTP/1.1) dsp.zhiz####.com:80
TCP(HTTP/1.1) api.e####.cn:80
TCP(HTTP/1.1) 1####.26.247.23:80
TCP(HTTP/1.1) da####.wagbr####.t####.com:80
TCP(HTTP/1.1) t####.zhiz####.com:80
TCP(HTTP/1.1) c.appj####.com:80
TCP(HTTP/1.1) m.ta####.com:80
TCP(HTTP/1.1) cdn.up####.cc####.####.cn:80
TCP(TLS/1.0) pco####.t####.com:443
TCP(TLS/1.0) gw.al####.com:443
TCP(TLS/1.0) pic.e####.cn:443
TCP(TLS/1.0) p####.t####.com.####.com:443
TCP(TLS/1.0) geo.atla####.com:443
TCP(TLS/1.0) ad.doublec####.net:443
TCP(TLS/1.0) sh.wagbr####.alibaba####.com:443
TCP(TLS/1.0) gm.mm####.com:443
TCP(TLS/1.0) m.ta####.com:443
TCP(TLS/1.0) api.e####.cn:443
TCP(TLS/1.0) t####.t####.com:443
TCP(TLS/1.0) us-aebr####.ali####.com:443
TCP(TLS/1.0) t####.rtb####.com:443
TCP(TLS/1.0) da####.wagbr####.t####.com:443
TCP(TLS/1.0) g.al####.com:443
TCP(TLS/1.0) l####.ta####.com.####.com:443
TCP(TLS/1.0) log.mm####.com:443
TCP(TLS/1.0) wild####.al####.com.####.net:443

DNS requests:

a.e####.cn
ad.a####.com
ad.doublec####.net
ap####.adi####.com
api.e####.cn
c####.360.cn
c.appj####.com
cdn.avazutr####.net
cdn.up####.com
cm.adi####.com
dsp.zhiz####.com
e.x.cn.####.com
fou####.ali####.com
g.al####.com
g.x.cn.####.com
gw.al####.com
h####.m.t####.com
h5.m.ta####.com
img.al####.com
l####.ta####.com
log.mm####.com
m.ta####.com
p####.t####.com
pco####.t####.com
pic.e####.cn
plb####.u####.com
t####.rtb####.com
t####.t####.com
t####.zhiz####.com
tr####.up####.com
u####.u####.com
wgo.mm####.com
www.ta####.com

HTTP GET requests:

a.e####.cn/public/getClickUrlList.shtml?lng=####&sd=####&screenheight=##...
a.e####.cn/public/getStartUpImage.shtml?height=####&width=####&sd=####&m...
a.e####.cn/public/rab.shtml?id=####&network=####&machine=####
a.e####.cn/public/setMachineUa.shtml?lng=####&sd=####&screenheight=####&...
a.e####.cn/public/showUrlVisit.shtml?os=####&osversion=####&appversion=#...
ap####.adi####.com/tj?key=####&rd=####&req=####&token=####
ap####.adi####.com/tj?key=####&rd=####&req=YWR####&token=####
api.e####.cn/public/getSecondaryHomeData.shtml?machine=####&version=####...
cdn.avazutr####.net/images/201608/039/67729df04049178564202fc22ac5f030_3...
cdn.up####.cc####.####.cn/creatives/2018-07-23/e7aa5fe0497c4d5e67d51a52a...
cm.adi####.com/?t=####&d=####&k=####&rd=####&c=####&code=####&pcode=####...
da####.wagbr####.t####.com/h5/mtop.user.getusersimple/1.0/?jsv=####&appK...
da####.wagbr####.t####.com/h5/mtop.user.getusersimple/1.0/?tbpm=####&jsv...
dsp.zhiz####.com/track/pixel?op=####&ct=####&price=####&ext=####
g.x.cn.####.com/r.gif?bb=6952&be=1620100&bf=11293&ci=24029&l=201730&m=30...
g.x.cn.####.com/x.gif?bb=####&gg=####&be=####&bf=####&os=####&m2=####&ci...
m.ta####.com/?sprefer=####
t####.zhiz####.com/mad.do?zzat=####&siteid=####&zzid=####&pr=####&adx=##...
tr####.up####.com/c?bidid=Z####
tr####.up####.com/p?bidid=Z####&source=####&price=####&machine=####&vers...
www.ta####.com/

HTTP POST requests:

c####.360.cn/stra_packet
c.appj####.com/ad/splash/stats.html

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.jgrpa.xml
/data/data/####/.log.lock
/data/data/####/.log.rpa
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/Ji.xml
/data/data/####/MessageStore.db-journal
/data/data/####/MsgLogStore.db-journal
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/UserAgent.xml
/data/data/####/a==7.3.1&&1.3.0_1532529853579_envelope.log
/data/data/####/ad_show_time.xml
/data/data/####/cn.ecook.xml
/data/data/####/collectiondatabase
/data/data/####/collectiondatabase-journal
/data/data/####/d==7.3.1&&1.3.0_1532529853731_envelope.log
/data/data/####/d==7.3.1&&1.3.0_1532529859465_envelope.log
/data/data/####/d==7.3.1&&1.3.0_1532529873919_envelope.log
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/ecookdatabase
/data/data/####/ecookdatabase-journal
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/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_000007 (deleted)
/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/####/index
/data/data/####/info.xml
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/jg_so_upgrade_setting.xml
/data/data/####/libjiagu.so
/data/data/####/lonLat.xml
/data/data/####/multidex.version.xml
/data/data/####/qihoo_jiagu_crash_report.xml
/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_message_state.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.umm.dat
/data/media/####/25effdsdbsv1fn6ozjtwmnfvc.tmp
/data/media/####/3073ppbwp3vc2m7cbrin36em2.tmp
/data/media/####/3wb29wmeqpnsorzhjfp5s8uys.tmp
/data/media/####/3yb36z9ztv2ft4u9zfk9stq3z.tmp
/data/media/####/507s2iiivy3gpzas3lxkpfn1c.tmp
/data/media/####/5mccn751if74avzf3mp9t7iot.tmp
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/sysid.dat

Miscellaneous:

Executes next shell scripts:

chmod 755 <Package Folder>/.jiagu/libjiagu.so
ls /
ls /sys/class/thermal

Loads the following dynamic libraries:

libjiagu

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
RSA
RSA-ECB-PKCS1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

Uses special library to hide executable bytecode.

Gains access to camera interface.

Gains access to geolocation.

Gains access to network information.

Gains access to telephone information (number, imei, etc.).

Gains access to information about APN settings.

Displays its own windows over windows of other applications.

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