dridex | 9f8bd9155e26a8b8060f88716c827a0d9c8250c66e3d4c5423b17408fcc252c2

Analysis

max time kernel
141s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
12-08-2024 00:31

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General

Target

9f8bd9155e26a8b8060f88716c827a0d9c8250c66e3d4c5423b17408fcc252c2.dll
Size

184KB
MD5

dc33e82f739cf669157e9ca01892156e
SHA1

0d7cd33fef1c71464d703e4d1ffabf7b2f22a945
SHA256

9f8bd9155e26a8b8060f88716c827a0d9c8250c66e3d4c5423b17408fcc252c2
SHA512

b7ccdf14995c1892fe8be251aa379a744ed89420181c472d92a9b5421bf7f021a827cab957c71ed09a847d166c6cb702b4a98644ceb8a9748e9cb7dcd2bbd3aa
SSDEEP

3072:wgkQz1PuOprc+kq6VNOe3qbarVEpZlcbBacS9nOdg3dA4l:lPFkq6zOe5ilSanO8d

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

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 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/2420-0-0x0000000074DB0000-0x0000000074DE0000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2240	2420	WerFault.exe	31

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 1236 wrote to memory of 2420	1236	rundll32.exe	31
PID 1236 wrote to memory of 2420	1236	rundll32.exe	31
PID 1236 wrote to memory of 2420	1236	rundll32.exe	31
PID 1236 wrote to memory of 2420	1236	rundll32.exe	31
PID 1236 wrote to memory of 2420	1236	rundll32.exe	31
PID 1236 wrote to memory of 2420	1236	rundll32.exe	31
PID 1236 wrote to memory of 2420	1236	rundll32.exe	31
PID 2420 wrote to memory of 2240	2420	rundll32.exe	32
PID 2420 wrote to memory of 2240	2420	rundll32.exe	32
PID 2420 wrote to memory of 2240	2420	rundll32.exe	32
PID 2420 wrote to memory of 2240	2420	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f8bd9155e26a8b8060f88716c827a0d9c8250c66e3d4c5423b17408fcc252c2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f8bd9155e26a8b8060f88716c827a0d9c8250c66e3d4c5423b17408fcc252c2.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2420
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 220
    3⤵
    - Program crash
    PID:2240

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/2420-0-0x0000000074DB0000-0x0000000074DE0000-memory.dmp

Filesize
192KB

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memory/2420-2-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

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