dridex | 70091cc5ee9636e49e913c4e114327ab12ce2cdf7934ccc98ed1a847b4cc4383

Analysis

max time kernel
111s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-09-2024 04:45

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General

Target

1a2f2b08645e45aea06a78a3ce574fd0N.dll
Size

277KB
MD5

1a2f2b08645e45aea06a78a3ce574fd0
SHA1

a322127cef51bb24e9e7828cfdaab9e677ca0400
SHA256

70091cc5ee9636e49e913c4e114327ab12ce2cdf7934ccc98ed1a847b4cc4383
SHA512

07f0330fa3dcec5e659b66c30828fefbb89b9dfa8dcb930d3fec233866385d194ca125ccb122841cd41fe67a6ecab24d80d337d72863bfdf20d9280938e512ee
SSDEEP

6144:AzWxkOP4p2EesvcDi6DOHPJo3d0KJ4z1WE9au/4pAClIXJO9wMkPjCIeh0mzJMEl:1SOP47es0e6yHPJo3d0KJ4z1WE9au/4L

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

144.76.1.150:443

50.249.212.98:23399

104.168.154.79:5007

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/2492-1-0x0000000074FF0000-0x0000000075021000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2256 2492 WerFault.exe rundll32.exe
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

pid	pid_target	process	target process
2256	2492	WerFault.exe	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	target process
PID 2848 wrote to memory of 2492	2848	rundll32.exe	rundll32.exe
PID 2848 wrote to memory of 2492	2848	rundll32.exe	rundll32.exe
PID 2848 wrote to memory of 2492	2848	rundll32.exe	rundll32.exe
PID 2848 wrote to memory of 2492	2848	rundll32.exe	rundll32.exe
PID 2848 wrote to memory of 2492	2848	rundll32.exe	rundll32.exe
PID 2848 wrote to memory of 2492	2848	rundll32.exe	rundll32.exe
PID 2848 wrote to memory of 2492	2848	rundll32.exe	rundll32.exe
PID 2492 wrote to memory of 2256	2492	rundll32.exe	WerFault.exe
PID 2492 wrote to memory of 2256	2492	rundll32.exe	WerFault.exe
PID 2492 wrote to memory of 2256	2492	rundll32.exe	WerFault.exe
PID 2492 wrote to memory of 2256	2492	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a2f2b08645e45aea06a78a3ce574fd0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a2f2b08645e45aea06a78a3ce574fd0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2492
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2492 -s 220
    3⤵
    - Program crash
    PID:2256

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/2492-0-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/2492-1-0x0000000074FF0000-0x0000000075021000-memory.dmp

Filesize
196KB

Download
memory/2492-3-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download