dridex | d41cf82271b3281920407bc2f98597cdc61106103bdb55da915a50119d1b1678

Analysis

max time kernel
110s
max time network
19s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
15-08-2024 01:32

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General

Target

b037826208f0664ea2e853840ff20790N.dll
Size

184KB
MD5

b037826208f0664ea2e853840ff20790
SHA1

ca5ea712d0c4e767cd9f70c70c908e1a90f30888
SHA256

d41cf82271b3281920407bc2f98597cdc61106103bdb55da915a50119d1b1678
SHA512

4cb8dd285ad9839c796149de75fc2b93d435805684cd07a3c171476e5a9970008c5e42c8b063c6b6e8a3f8e51aa3ab4013347703a339f0c40f4585f72c1182fc
SSDEEP

3072:LW8WgWhVnmr6k/6zsRJLNqTXvMU9tb+/HU6ngmoWx9ixCH0u:S8qh+66QsRdNiBW/06ngmoWexC

Score

10^/10

dridex 22203 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22203

103.75.201.2:443

158.223.1.108:6225

165.22.28.242:4664

rc4.plain

Signatures

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

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/1960-0-0x0000000074A70000-0x0000000074AA0000-memory.dmp	dridex_ldr
behavioral1/memory/1960-2-0x0000000074A70000-0x0000000074AA0000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2020	1960	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 1960	1688	rundll32.exe	30
PID 1688 wrote to memory of 1960	1688	rundll32.exe	30
PID 1688 wrote to memory of 1960	1688	rundll32.exe	30
PID 1688 wrote to memory of 1960	1688	rundll32.exe	30
PID 1688 wrote to memory of 1960	1688	rundll32.exe	30
PID 1688 wrote to memory of 1960	1688	rundll32.exe	30
PID 1688 wrote to memory of 1960	1688	rundll32.exe	30
PID 1960 wrote to memory of 2020	1960	rundll32.exe	31
PID 1960 wrote to memory of 2020	1960	rundll32.exe	31
PID 1960 wrote to memory of 2020	1960	rundll32.exe	31
PID 1960 wrote to memory of 2020	1960	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b037826208f0664ea2e853840ff20790N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b037826208f0664ea2e853840ff20790N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1960
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 220
    3⤵
    - Program crash
    PID:2020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1960-1-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/1960-0-0x0000000074A70000-0x0000000074AA0000-memory.dmp

Filesize
192KB

Download
memory/1960-2-0x0000000074A70000-0x0000000074AA0000-memory.dmp

Filesize
192KB

Download