Adware.Gexin.18696

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) q####.c####.l####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(TLS/1.0) mtjso####.b####.com:443
TCP(TLS/1.0) h####.b####.com:443
TCP(TLS/1.0) dxp.b####.com:443
TCP(TLS/1.0) d####.me####.com:443
TCP sdk.o####.t####.####.com:5224
TCP cm-1####.ig####.com:5225
TCP cm-1####.ig####.com:5224
TCP cm-1####.ig####.com:5227

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
c-h####.g####.com
cdn-sdk####.g####.com
cm-1####.ig####.com
cm-1####.ig####.com
cm-1####.ig####.com
dxp.b####.com
eco####.me####.com
h####.b####.com
l####.tbs.qq.com
mtjso####.b####.com
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

cdn-sdk####.g####.com.####.com/tdata_EDB102
cdn-sdk####.g####.com.####.com/tdata_fPG280
cdn-sdk####.g####.com.####.com/tdata_hfu386
cdn-sdk####.g####.com.####.com/tdata_uED964
q####.c####.l####.####.com/config/hz-hzv6.conf
q####.c####.l####.####.com/tdata_tYM194
sdk.o####.p####.####.com/api/addr.htm

HTTP POST requests:

a####.exc.mob.com/errconf
c-h####.g####.com/api.php?format=####&t=####
l####.tbs.qq.com/ajax?c=####&k=####
sdk-ope####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/data/####/.duid
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.vpl_lock
/data/data/####/1256fbaeb9e194340629e5b23f2f48f99f9ad9f8e4ca1b1....0.tmp
/data/data/####/4757beb063b391e14e465501b61dc92f6ad4cfe03d12ce8....0.tmp
/data/data/####/7d484fe5c2506aefb8795c58eeab3b1f6ed1d943b7628a0....0.tmp
/data/data/####/98a42131162b22a9c9fd4ed7732dd9311f5dbd5272af376....0.tmp
/data/data/####/BuglySdkInfos.xml
/data/data/####/Meiqia.xml
/data/data/####/Mysp.xml
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/__Baidu_Stat_SDK_SendRem.xml
/data/data/####/__local_ap_info_cache.json
/data/data/####/__local_last_session.json
/data/data/####/__local_stat_cache.json
/data/data/####/__send_data_1574702962244
/data/data/####/__send_data_1574702966084
/data/data/####/ac468e3410b0
/data/data/####/b2a02983d2db4de9b3c613ea279c3772e314ebce111bea4....0.tmp
/data/data/####/baidu_mtj_sdk_record.xml
/data/data/####/core_info
/data/data/####/domain_1
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libjiagu-303267066.so
/data/data/####/meiqia.db
/data/data/####/meiqia.db-journal
/data/data/####/mob_commons_1
/data/data/####/mob_sdk_exception_1
/data/data/####/mtj_auto.config
/data/data/####/mtj_autoTracker.js
/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/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/tdata_fPG280
/data/data/####/tdata_fPG280.jar
/data/data/####/tdata_hfu386
/data/data/####/tdata_hfu386.jar
/data/data/####/tdata_uED964
/data/data/####/tdata_uED964.jar
/data/data/####/trace_circle.data
/data/media/####/.artc_lock
/data/media/####/.confd
/data/media/####/.confd-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/data/media/####/.lesd_lock
/data/media/####/.mn_1360822780
/data/media/####/.nomedia
/data/media/####/.pkg_lock
/data/media/####/.pkgs_lock
/data/media/####/.rc_lock
/data/media/####/.slw
/data/media/####/.ss_lock
/data/media/####/.timestamp
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.youjin.jizhang.bin
/data/media/####/com.youjin.jizhang.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/tbslog.txt
/data/media/####/tdata_fPG280
/data/media/####/tdata_hfu386
/data/media/####/tdata_uED964
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /proc/cpuinfo
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GePushService 24828 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop ro.build.display.id
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.miui.ui.version.name
getprop ro.product.cpu.abi
getprop ro.smartisan.version
getprop ro.vivo.os.version
mount
sh

Loads the following dynamic libraries:

crash_analysis
getuiext2
libjiagu-303267066

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-CFB-NoPadding
AES-ECB-PKCS5Padding
AES-ECB-PKCS7Padding
RSA-ECB-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-ECB-NoPadding
AES-ECB-PKCS5Padding

Accesses the ITelephony private interface.

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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