Malware Analysis Report

2025-01-19 05:42

Sample ID 210810-jjbmtrad56
Target 2597276dc122b167e715dc047cad906d395de17a5b5526d29466d51a46d4d1b3.apk
SHA256 2597276dc122b167e715dc047cad906d395de17a5b5526d29466d51a46d4d1b3
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

2597276dc122b167e715dc047cad906d395de17a5b5526d29466d51a46d4d1b3

Threat Level: Known bad

The file 2597276dc122b167e715dc047cad906d395de17a5b5526d29466d51a46d4d1b3.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

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

Uses reflection

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-08-10 10:43

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 send SMS messages. android.permission.SEND_SMS 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
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to read SMS messages. android.permission.READ_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

Analysis: behavioral1

Detonation Overview

Submitted

2021-08-10 10:43

Reported

2021-08-10 10:46

Platform

android-x86-arm

Max time kernel

799788s

Command Line

com.weico.international

Signatures

FluBot

banker trojan infostealer flubot

FluBot Payload

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

Loads dropped Dex/Jar

Description Indicator Process Target
N/A /data/user/0/com.weico.international/app_apkprotector_dex/HQJpfGX9.exe N/A N/A
N/A /data/user/0/com.weico.international/app_apkprotector_dex/HQJpfGX9.exe N/A N/A
N/A /data/user/0/com.weico.international/app_apkprotector_dex/HQJpfGX9.exe 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
Invokes method android.view.ViewGroup.makeOptionalFitsSystemWindows N/A N/A N/A

Processes

com.weico.international

com.weico.international

/system/bin/dex2oat

Network

N/A

Files

/data/user/0/com.weico.international/app_apkprotector_dex/HQJpfGX9.exe

MD5 f493c7cd6704581abb146cb2aa552bb5
SHA1 afdfc25aacb5a4beb81f589307ac77934b9cdd86
SHA256 cf7e38c4b5e18c516d3820cb4fa52c98cbe5b6ee9163e8e6d9715cf42fb8da7e
SHA512 a23ea39da6709bc713bfe9ff3795dbc20171d9aa313c9d13926ad95e4e4dc16673c0f7c432e9c7bbe8cb12e47970bd9d819288b77d719438b10a98f820961ec1

/data/user/0/com.weico.international/app_apkprotector_dex/HQJpfGX9.exe.x86.flock

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.weico.international/app_apkprotector_dex/HQJpfGX9.exe

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.weico.international/app_apkprotector_dex/oat/x86/HQJpfGX9.vdex

MD5 ef6f87836c60bdf92aa6af453bf3ae22
SHA1 e8028542358fd8302866f9800d2b6a82fa046942
SHA256 7f190f2e0ec017b92514d1734c7dee13878ec4654604fc7ac39f3cff33e2e91c
SHA512 5151258100b75f79338f43709d12e4ab40567d31ba75ada4c596ea434e21c61ddcbfb1986dc7ad49ec929067e77a453c0f9bc4f09bd278b18cd6a59d827ea3ed

/data/user/0/com.weico.international/app_apkprotector_dex/oat/x86/HQJpfGX9.odex

MD5 242b1c31aebd6bee6e096bb5cde7387a
SHA1 b33e8e6e41925fc2001024d18416a34d297728d3
SHA256 370ae4938581d312b5d9eaefd28ad7339ecc20905b4fd0baa2ef2ae9fdcc3930
SHA512 5d86c7bab6e83ab73f838cced1489a8df2c66c2682b9a8251b9af2bdbbfde7436d270ea11bb42da7df8e6c41605f55aaf77370f6414d38214ceeac91908a440c

/data/user/0/com.weico.international/app_apkprotector_dex/HQJpfGX9.exe

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.weico.international/app_apkprotector_dex/HQJpfGX9.exe

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.weico.international/shared_prefs/DHL.xml

MD5 075d87574249fa8cf7eac15b44d44ba2
SHA1 5c7a07d579d922cff8eb8a892d6a66e6b446c46e
SHA256 2d1a53c7dead5de9ca54233549be8e017d13df671c8486dfecc476964c3d8d19
SHA512 e3a16be9e2efa62637112a477b8cfbc734497bcbd48dad198bc090d62d2ff894d297b1d69ae97c97c6570778a11dd5154ddc7f548f65593c7460567a238e59c1