dridex | a6d0cb483c3724f8f51245af78b8d8d9f7a7eda3ffbf2d5f4838693b24efb5d6

Analysis

max time kernel
115s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-08-2024 21:13

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General

Target

f2938f62f91aa71be8ba83eb79897670N.dll
Size

184KB
MD5

f2938f62f91aa71be8ba83eb79897670
SHA1

a0f56262b07fadb92677315623870a118a78c42b
SHA256

a6d0cb483c3724f8f51245af78b8d8d9f7a7eda3ffbf2d5f4838693b24efb5d6
SHA512

e130aeaba32f5f903d8615f3777b66e57f09dda4357830876af6bcafd30647c304b9c033a7c19432bb03937b36178f6833c42ade76ca1234b4f814bd0f243fa5
SSDEEP

3072:DJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8JMa//2uFrSc:ofYOX+wTScR/Xzku9LVwLuG

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

80.241.218.90:443

103.161.172.109:13786

87.98.128.76:5723

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
behavioral2/memory/2916-0-0x0000000075690000-0x00000000756BF000-memory.dmp	dridex_ldr
behavioral2/memory/2916-3-0x0000000075690000-0x00000000756BF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2544	2916	WerFault.exe	84

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 3 IoCs

description	pid	Process	procid_target
PID 4452 wrote to memory of 2916	4452	rundll32.exe	84
PID 4452 wrote to memory of 2916	4452	rundll32.exe	84
PID 4452 wrote to memory of 2916	4452	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f2938f62f91aa71be8ba83eb79897670N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4452
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f2938f62f91aa71be8ba83eb79897670N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2916
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 616
    3⤵
    - Program crash
    PID:2544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2916 -ip 2916
1⤵
PID:3396

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/2916-0-0x0000000075690000-0x00000000756BF000-memory.dmp

Filesize
188KB

Download
memory/2916-2-0x0000000000C40000-0x0000000000C46000-memory.dmp

Filesize
24KB

Download
memory/2916-3-0x0000000075690000-0x00000000756BF000-memory.dmp

Filesize
188KB

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