Malware Analysis Report

2025-01-19 05:42

Sample ID 210810-4qz8ljcfas
Target e35868c675496d3eea70814e0ecb8b6da27594509a76714fb1e06e5c682fea2c.apk
SHA256 e35868c675496d3eea70814e0ecb8b6da27594509a76714fb1e06e5c682fea2c
Tags
flubot banker infostealer obfuscation ransomware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e35868c675496d3eea70814e0ecb8b6da27594509a76714fb1e06e5c682fea2c

Threat Level: Known bad

The file e35868c675496d3eea70814e0ecb8b6da27594509a76714fb1e06e5c682fea2c.apk was found to be: Known bad.

Malicious Activity Summary

flubot banker infostealer obfuscation ransomware trojan

FluBot

FluBot Payload

Requests dangerous framework permissions

Loads dropped Dex/Jar

Requests enabling of the accessibility settings.

Reads name of network operator

Uses Crypto APIs (Might try to encrypt user data).

Uses reflection

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-08-10 12:39

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to read the user's contacts data. android.permission.READ_CONTACTS N/A N/A
Allows an application to read SMS messages. android.permission.READ_SMS N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows read only access to phone state, including the current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device. android.permission.READ_PHONE_STATE N/A N/A
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call. android.permission.CALL_PHONE N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-08-10 12:39

Reported

2021-08-10 12:42

Platform

android-x64

Max time kernel

806729s

Max time network

117s

Command Line

com.taobao.taobao

Signatures

FluBot

banker trojan infostealer flubot

FluBot Payload

Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

Description Indicator Process Target
N/A /data/user/0/com.taobao.taobao/app_apkprotector_dex/classes-v1.bin N/A N/A
N/A /data/user/0/com.taobao.taobao/app_apkprotector_dex/classes-v1.bin N/A N/A

Requests enabling of the accessibility settings.

Description Indicator Process Target
Intent action android.settings.ACCESSIBILITY_SETTINGS N/A N/A

Reads name of network operator

Description Indicator Process Target
Framework API call android.telephony.TelephonyManager.getNetworkOperatorName N/A N/A

Uses Crypto APIs (Might try to encrypt user data).

ransomware
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Uses reflection

obfuscation
Description Indicator Process Target
Acesses field com.android.okhttp.internal.tls.OkHostnameVerifier.INSTANCE N/A N/A N/A
Acesses field javax.security.auth.x500.X500Principal.thisX500Name N/A N/A N/A
Acesses field javax.security.auth.x500.X500Principal.thisX500Name N/A N/A N/A
Acesses field javax.security.auth.x500.X500Principal.thisX500Name N/A N/A N/A
Acesses field javax.security.auth.x500.X500Principal.thisX500Name N/A N/A N/A
Acesses field javax.security.auth.x500.X500Principal.thisX500Name N/A N/A N/A
Acesses field javax.security.auth.x500.X500Principal.thisX500Name N/A N/A N/A
Acesses field javax.security.auth.x500.X500Principal.thisX500Name N/A N/A N/A
Acesses field javax.security.auth.x500.X500Principal.thisX500Name N/A N/A N/A
Acesses field javax.security.auth.x500.X500Principal.thisX500Name N/A N/A N/A
Acesses field javax.security.auth.x500.X500Principal.thisX500Name N/A N/A N/A

Processes

com.taobao.taobao

Network

Country Destination Domain Proto
N/A 1.1.1.1:853 tcp
N/A 216.239.35.4:123 time.android.com udp
N/A 1.1.1.1:853 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 5.79.71.225:80 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 87.106.18.146:80 bmwedwslangtayb.ru tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 183.78.205.92:80 gurjealmokihfsa.ru tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 104.16.249.249:443 tcp
N/A 183.78.205.92:80 gurjealmokihfsa.ru tcp
N/A 183.78.205.92:80 gurjealmokihfsa.ru tcp
N/A 183.78.205.92:80 gurjealmokihfsa.ru tcp
N/A 172.217.169.74:80 play.googleapis.com tcp
N/A 183.78.205.92:80 gurjealmokihfsa.ru tcp

Files

/data/user/0/com.taobao.taobao/app_apkprotector_dex/classes-v1.bin

MD5 37efde7b0227fb70ff38da0f5cd0d56c
SHA1 a95c82e26f4c5d70ee01eb144b0d0172cda58665
SHA256 665cef9155e10ffdd428dba9441f4b2d0e6fe549edfb45c6f0de15dc6535298b
SHA512 ae5914137c6151efd1755094c59f47cb7e40ad3b06ae08a9be1ee1d2d8fce3fae034350588989bfa1120888604d39e8e6436e042443ccc3576b4af12840b94b8

/data/user/0/com.taobao.taobao/app_apkprotector_dex/classes-v1.bin

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.taobao.taobao/app_apkprotector_dex/classes-v1.bin

MD5 ab20995b2b86e11a7021bd57f24dd0ef
SHA1 cce6d23b5a3756e1c7551166e14a1510183842d2
SHA256 41d538856b4d3f47a2a593f17c79f449cf8f5e6ccc9c18128ed923043d5efd17
SHA512 6bfc12b9f982363b7908b5aacac5c2f4f9d903f4c58b2f670c685aa6e306e79ff8a2f33a1a4d75dcbef22d25cb106a0a14508483dfa3b76734d04cfc3d7ed9c6

/data/user/0/com.taobao.taobao/shared_prefs/DHL.xml

MD5 3b0a8a8f569aef1c83c51906f7c6bfa6
SHA1 eb8438d2fcf9a8b8f1b68c0711013384f010782d
SHA256 ce064f7b12ce38f4f7b6c316db57f9c6f025acd233e6df88f96ccc4d45fa2707
SHA512 2aff494b905e9af5428ae4ff6c260e47239a123017f55bd04199270b340c8ba3ec1768b43acf93dd7188a53224e9773ff05e788bb8548c9009bb4c6070f0fbe3

/data/user/0/com.taobao.taobao/shared_prefs/DHL.xml

MD5 9aa85afbaaf10dbad45ba24cd3399425
SHA1 dcaa6a35e2f7c5b7a540ecbf38646376a4e141ab
SHA256 b197e29dec19aa88a46f1e7750b7d36b643e24260b08a346d16be6bb23a2831a
SHA512 b2c650900a79991df526a7c849e8c1256e050d6e889815b628c9337a38089ae296ce47041a1a4b34ba016137b720d24c0d8ff69fc0d5e78a7bf27a84d036e900