dridex | d8c99e71b3cc1c6d599b43b42ec734b25300bd014549f7d2bf27fc88e8f2a393

Analysis

max time kernel
105s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14-08-2024 20:48

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General

Target

731ec3a4b9e71e4a9438ff48f54f0b10N.dll
Size

184KB
MD5

731ec3a4b9e71e4a9438ff48f54f0b10
SHA1

fa398486b03a9e2d5d8e6b33196da9c0b3c13e26
SHA256

d8c99e71b3cc1c6d599b43b42ec734b25300bd014549f7d2bf27fc88e8f2a393
SHA512

3038c80116b02afe7e0cfe385ed168e8236249acd3b97b9cfa2fa05b71b513208322fa0482a9a2e9ecfadd80eb16c92b8cd5b11f68b222633202d0c6aa88a376
SSDEEP

3072:XuwfhNXphcqs2tJYsoa9Xibolk0CtPBU1jhhF8ZJ8fDo4Ktlmsb:N7TXYsd9SkONU1jKGlSlm

Score

10^/10

dridex 22202 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22202

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 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/2604-0-0x0000000074EF0000-0x0000000074F20000-memory.dmp	dridex_ldr
behavioral2/memory/2604-2-0x0000000074EF0000-0x0000000074F20000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
4768	2604	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

Processes:

rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 1876 wrote to memory of 2604	1876	rundll32.exe	84
PID 1876 wrote to memory of 2604	1876	rundll32.exe	84
PID 1876 wrote to memory of 2604	1876	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\731ec3a4b9e71e4a9438ff48f54f0b10N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\731ec3a4b9e71e4a9438ff48f54f0b10N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2604
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 616
    3⤵
    - Program crash
    PID:4768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2604 -ip 2604
1⤵
PID:4616

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

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Downloads

memory/2604-0-0x0000000074EF0000-0x0000000074F20000-memory.dmp

Filesize
192KB

Download
memory/2604-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/2604-2-0x0000000074EF0000-0x0000000074F20000-memory.dmp

Filesize
192KB

Download