dridex | b957fc581fbbf6f26318cc0a7d6c724c4e5239c5546db78a70869eee43c7249a

Analysis

max time kernel
111s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11-09-2024 19:45

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General

Target

6bd5865a4b7b68cf7b1cf50bf10d1370N.dll
Size

196KB
MD5

6bd5865a4b7b68cf7b1cf50bf10d1370
SHA1

5672800f47ca0f3098e3d2e53306a21c7c26617b
SHA256

b957fc581fbbf6f26318cc0a7d6c724c4e5239c5546db78a70869eee43c7249a
SHA512

b598e91f76320f943baab47a2fd6852c96ba6279f9cb0eaeb5d0087a4853d2ffa152da181b97e94a5e990e854d9f2746442f3c2c91a47995e90ac740cbd333a4
SSDEEP

3072:OuCmyBVtWxZCOCA4Hpl1tv18FTETA8ocya/OyoSJPAacbnid8DOHPJ+HJe:izWxkOP4p2EesvcDi6DOHPJt

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

144.76.1.150:443

50.249.212.98:23399

104.168.154.79:5007

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

Processes:

resource	yara_rule
behavioral1/memory/1720-1-0x0000000074560000-0x0000000074591000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1328	1720	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

Processes:

rundll32.exe

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

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 2384 wrote to memory of 1720	2384	rundll32.exe	30
PID 2384 wrote to memory of 1720	2384	rundll32.exe	30
PID 2384 wrote to memory of 1720	2384	rundll32.exe	30
PID 2384 wrote to memory of 1720	2384	rundll32.exe	30
PID 2384 wrote to memory of 1720	2384	rundll32.exe	30
PID 2384 wrote to memory of 1720	2384	rundll32.exe	30
PID 2384 wrote to memory of 1720	2384	rundll32.exe	30
PID 1720 wrote to memory of 1328	1720	rundll32.exe	32
PID 1720 wrote to memory of 1328	1720	rundll32.exe	32
PID 1720 wrote to memory of 1328	1720	rundll32.exe	32
PID 1720 wrote to memory of 1328	1720	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6bd5865a4b7b68cf7b1cf50bf10d1370N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6bd5865a4b7b68cf7b1cf50bf10d1370N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1720
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 220
    3⤵
    - Program crash
    PID:1328

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/1720-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x0000000074560000-0x0000000074591000-memory.dmp

Filesize
196KB

Download
memory/1720-3-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download