dridex | e03d71dc401de3b93911ab13fa1a2f78a06a7c2a0086e1bbd5b1e244b801cdef

Analysis

max time kernel
140s
max time network
119s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
01/03/2024, 03:31

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General

Target
b0363548f65b9b7c35cf38968ab57af8.dll
Size 188KB
Sample240301-d22emaca25
SHA256 e03d71dc401de3b93911ab13fa1a2f78a06a7c2a0086e1bbd5b1e244b801cdef
MD5 b0363548f65b9b7c35cf38968ab57af8
SHA1 78bfd82a10e8309d40d42ff80a4b38ff56d77653
SHA512 6269d591615dd758f8f81c10cfafffe2986f38aefd28d9309aca22e4008bfe6884e724a161c095388118e12e45448c49f7a08a1c47203408a875d9d9ccff866e
SSDEEP 3072:fA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAo0o:fzIqATVfQeV2FZalKq6jtGJWuTmd
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

103.82.248.59:443
54.39.98.141:6602
103.109.247.8:10443

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/2232-0-0x0000000074AA0000-0x0000000074AD0000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2504	2232	WerFault.exe	28

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1568 wrote to memory of 2232	1568	rundll32.exe	28
PID 1568 wrote to memory of 2232	1568	rundll32.exe	28
PID 1568 wrote to memory of 2232	1568	rundll32.exe	28
PID 1568 wrote to memory of 2232	1568	rundll32.exe	28
PID 1568 wrote to memory of 2232	1568	rundll32.exe	28
PID 1568 wrote to memory of 2232	1568	rundll32.exe	28
PID 1568 wrote to memory of 2232	1568	rundll32.exe	28
PID 2232 wrote to memory of 2504	2232	rundll32.exe	29
PID 2232 wrote to memory of 2504	2232	rundll32.exe	29
PID 2232 wrote to memory of 2504	2232	rundll32.exe	29
PID 2232 wrote to memory of 2504	2232	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0363548f65b9b7c35cf38968ab57af8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1568
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0363548f65b9b7c35cf38968ab57af8.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 300
    3⤵
    - Program crash
    PID:2504

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2232-0-0x0000000074AA0000-0x0000000074AD0000-memory.dmp

Download

memory/2232-1-0x0000000000A90000-0x0000000000A96000-memory.dmp