dridex | 9e15d34bafc5ac424f779e23c20563661ce9e3c39f588b90151bbc9aa06ccb6b

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
12-08-2024 23:49

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General

Target

1e5e6ad563929c8266f8d1eff2d3e440N.dll
Size

184KB
MD5

1e5e6ad563929c8266f8d1eff2d3e440
SHA1

9bec47bdbd9f957135e4242a970a6b3a32ef9251
SHA256

9e15d34bafc5ac424f779e23c20563661ce9e3c39f588b90151bbc9aa06ccb6b
SHA512

26fa7931e74697a62253f6886ae56e0fff518b541d5ca16bdc3b25aa6b2a59758b3876b7ef1e3aa922393701f67f116dd07fd7b9035d3650c10c633f37483287
SSDEEP

3072:ogkQz1PuOprc+kq6VNOe3qbarVEpZlcbBacS9nOdgrdA4l:NPFkq6zOe5ilSanOUd

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/1428-0-0x0000000074CA0000-0x0000000074CD0000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2780	1428	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 2124 wrote to memory of 1428	2124	rundll32.exe	30
PID 2124 wrote to memory of 1428	2124	rundll32.exe	30
PID 2124 wrote to memory of 1428	2124	rundll32.exe	30
PID 2124 wrote to memory of 1428	2124	rundll32.exe	30
PID 2124 wrote to memory of 1428	2124	rundll32.exe	30
PID 2124 wrote to memory of 1428	2124	rundll32.exe	30
PID 2124 wrote to memory of 1428	2124	rundll32.exe	30
PID 1428 wrote to memory of 2780	1428	rundll32.exe	32
PID 1428 wrote to memory of 2780	1428	rundll32.exe	32
PID 1428 wrote to memory of 2780	1428	rundll32.exe	32
PID 1428 wrote to memory of 2780	1428	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1e5e6ad563929c8266f8d1eff2d3e440N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1e5e6ad563929c8266f8d1eff2d3e440N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1428
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1428 -s 220
    3⤵
    - Program crash
    PID:2780

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/1428-0-0x0000000074CA0000-0x0000000074CD0000-memory.dmp

Filesize
192KB

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memory/1428-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

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