dridex | 1a17d3396fea33db4359dd50e85df9cc85fa5340ba3fdaaf5fd4d56c78b961cb

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
13-08-2024 04:18

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General

Target

6acc7d0432f48ff0d08ea704f93960e0N.dll
Size

184KB
MD5

6acc7d0432f48ff0d08ea704f93960e0
SHA1

7ba95dd54c43a5c6434f36cad2f9068126bd7d8a
SHA256

1a17d3396fea33db4359dd50e85df9cc85fa5340ba3fdaaf5fd4d56c78b961cb
SHA512

b8033e58bb0801df7c41e06e6ff7b6705f159c694e70b21c253ceaa68eb0d259f9438b30760f427e8a969af56d78a4ad4b105a8d597ad6272e734c13a9c72b65
SSDEEP

3072:hgkQz1PuOprc+kq6VNOe3qbarVEpZlcbBacS9nOdgjdA4l:4PFkq6zOe5ilSanO4d

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

Processes:

resource	yara_rule
behavioral1/memory/2404-0-0x0000000074C90000-0x0000000074CC0000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2460	2404	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 2284 wrote to memory of 2404	2284	rundll32.exe	30
PID 2284 wrote to memory of 2404	2284	rundll32.exe	30
PID 2284 wrote to memory of 2404	2284	rundll32.exe	30
PID 2284 wrote to memory of 2404	2284	rundll32.exe	30
PID 2284 wrote to memory of 2404	2284	rundll32.exe	30
PID 2284 wrote to memory of 2404	2284	rundll32.exe	30
PID 2284 wrote to memory of 2404	2284	rundll32.exe	30
PID 2404 wrote to memory of 2460	2404	rundll32.exe	32
PID 2404 wrote to memory of 2460	2404	rundll32.exe	32
PID 2404 wrote to memory of 2460	2404	rundll32.exe	32
PID 2404 wrote to memory of 2460	2404	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6acc7d0432f48ff0d08ea704f93960e0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6acc7d0432f48ff0d08ea704f93960e0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 220
    3⤵
    - Program crash
    PID:2460

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/2404-0-0x0000000074C90000-0x0000000074CC0000-memory.dmp

Filesize
192KB

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memory/2404-2-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

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