dridex | b6a1a4a13439939ec5107deed4a3f2c99d0dbca14b0bc430489b43a8cf7cd863

Analysis

max time kernel
110s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-09-2024 04:34

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General

Target

7f3e8d8c08965a1a5cc38084c99392b0N.dll
Size

274KB
MD5

7f3e8d8c08965a1a5cc38084c99392b0
SHA1

a211b99bec4b0c275da368b5ad76a5fd2e72c3ed
SHA256

b6a1a4a13439939ec5107deed4a3f2c99d0dbca14b0bc430489b43a8cf7cd863
SHA512

31a43ed4189b4dec693d7e2d40ebea451f9ccd44596a7b1e7bea19e8f83547526ba49e2dfe12791dfa64d3ef830abbe33917948f81601135f8f8072020145d2b
SSDEEP

3072:GuCmyBVtWxZCOCA4Hpl1tv18FTETA8ocya/OyoSJPAacbnid8DOHPJ+HJesSwlK:6zWxkOP4p2EesvcDi6DOHPJPsSwlK

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/1356-1-0x0000000074CB0000-0x0000000074CE1000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2388	1356	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 1900 wrote to memory of 1356	1900	rundll32.exe	30
PID 1900 wrote to memory of 1356	1900	rundll32.exe	30
PID 1900 wrote to memory of 1356	1900	rundll32.exe	30
PID 1900 wrote to memory of 1356	1900	rundll32.exe	30
PID 1900 wrote to memory of 1356	1900	rundll32.exe	30
PID 1900 wrote to memory of 1356	1900	rundll32.exe	30
PID 1900 wrote to memory of 1356	1900	rundll32.exe	30
PID 1356 wrote to memory of 2388	1356	rundll32.exe	32
PID 1356 wrote to memory of 2388	1356	rundll32.exe	32
PID 1356 wrote to memory of 2388	1356	rundll32.exe	32
PID 1356 wrote to memory of 2388	1356	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7f3e8d8c08965a1a5cc38084c99392b0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7f3e8d8c08965a1a5cc38084c99392b0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1356
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 220
    3⤵
    - Program crash
    PID:2388

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/1356-0-0x0000000000100000-0x0000000000106000-memory.dmp

Filesize
24KB

Download
memory/1356-1-0x0000000074CB0000-0x0000000074CE1000-memory.dmp

Filesize
196KB

Download
memory/1356-3-0x0000000000100000-0x0000000000106000-memory.dmp

Filesize
24KB

Download