dridex | c26b865b98b8b033d0cc677e2265fc15bb7f8f46b60a07ad377dd61d108c8e77

Analysis

max time kernel
119s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13/08/2024, 09:47

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General

Target
98ec2264df0ad1eb43a5824d871c2300N.dll
Size 184KB
Sample240813-lsavba1erl
SHA256 c26b865b98b8b033d0cc677e2265fc15bb7f8f46b60a07ad377dd61d108c8e77
MD5 98ec2264df0ad1eb43a5824d871c2300
SHA1 360244e0171d03258f0cadcdf41de9a31c0283c7
SHA512 2e8b596d2b4bc295bdcfde25de791a95dfd1e7610b4c765e2383c95925d8a673ed1187458f099f460728515072c5d53b872b0127b70723d55e4ed9bfab4fa7da
SSDEEP 3072:8gkQz1PuOprc+kq6VNOe3qbarVEpZlcbBacS9nOdgddA4l:JPFkq6zOe5ilSanOqd
MD5 SHA1 SHA512 SSDEEP

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
behavioral2/memory/4636-0-0x0000000075780000-0x00000000757B0000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4732	4636	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 3588 wrote to memory of 4636	3588	rundll32.exe	84
PID 3588 wrote to memory of 4636	3588	rundll32.exe	84
PID 3588 wrote to memory of 4636	3588	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\98ec2264df0ad1eb43a5824d871c2300N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\98ec2264df0ad1eb43a5824d871c2300N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4636
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4636 -s 620
    3⤵
    - Program crash
    PID:4732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4636 -ip 4636
1⤵
PID:2560

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/4636-0-0x0000000075780000-0x00000000757B0000-memory.dmp

Download

memory/4636-1-0x00000000014E0000-0x00000000014E6000-memory.dmp