dridex | 66edd0d9ee2b3b00358b531c612d24c6cf1bf155ec82ef68f0d560a955f3ed31

Analysis

max time kernel
110s
max time network
17s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01-09-2024 11:08

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General

Target

83518b5dc4c2316730f1659f31467e30N.dll
Size

188KB
MD5

83518b5dc4c2316730f1659f31467e30
SHA1

c93711b0d89689e11fc2754cb80391cd4af2d742
SHA256

66edd0d9ee2b3b00358b531c612d24c6cf1bf155ec82ef68f0d560a955f3ed31
SHA512

b95b5e56a0ff42f3bb1d003472bc3ba820bd18cf207464f0afb71d3aa7a900fe1907161ef60bc54a27fa79763dcf5583c3b4d7a9d98daae81627be9680ed8eac
SSDEEP

3072:bA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAozo:bzIqATVfQeV2FZalKq6jtGJWuTmd

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

103.82.248.59:443

54.39.98.141:6602

103.109.247.8:10443

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
behavioral1/memory/2660-1-0x00000000745F0000-0x0000000074620000-memory.dmp	dridex_ldr
behavioral1/memory/2660-2-0x00000000745F0000-0x0000000074620000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2776	2660	WerFault.exe	31

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 11 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2660 wrote to memory of 2776	2660	rundll32.exe	32
PID 2660 wrote to memory of 2776	2660	rundll32.exe	32
PID 2660 wrote to memory of 2776	2660	rundll32.exe	32
PID 2660 wrote to memory of 2776	2660	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\83518b5dc4c2316730f1659f31467e30N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\83518b5dc4c2316730f1659f31467e30N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2660
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2660 -s 300
    3⤵
    - Program crash
    PID:2776

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/2660-0-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2660-1-0x00000000745F0000-0x0000000074620000-memory.dmp

Filesize
192KB

Download
memory/2660-2-0x00000000745F0000-0x0000000074620000-memory.dmp

Filesize
192KB

Download
memory/2660-3-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download