dridex | 913b3a1f7373183062faff30e346f317bdf492508a1aa4d4fcb8dd1bf7e078d8

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
15/08/2024, 02:47

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General

Target

73e7b693263021c2c5636417ee501e70N.dll
Size

184KB
MD5

73e7b693263021c2c5636417ee501e70
SHA1

3cb31bd9e11e9a31509d7fd16e5c6c7f5ea38e3f
SHA256

913b3a1f7373183062faff30e346f317bdf492508a1aa4d4fcb8dd1bf7e078d8
SHA512

a3ed57f17965ecd2becbeeba65f277197217a621b3be99fcf6e644c064947a0c64065c98c7c6b3534882c8fdd4bdbeba4b0fb535bff01bd048795d84b16495a7
SSDEEP

3072:NgkQz1PuOprc+kq6VNOe3qbarVEpZlcbBacS9nOdgPdA4l:cPFkq6zOe5ilSanOYd

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

resource	yara_rule
behavioral1/memory/2524-0-0x0000000074F50000-0x0000000074F80000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1940	2524	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

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 2436 wrote to memory of 2524	2436	rundll32.exe	30
PID 2436 wrote to memory of 2524	2436	rundll32.exe	30
PID 2436 wrote to memory of 2524	2436	rundll32.exe	30
PID 2436 wrote to memory of 2524	2436	rundll32.exe	30
PID 2436 wrote to memory of 2524	2436	rundll32.exe	30
PID 2436 wrote to memory of 2524	2436	rundll32.exe	30
PID 2436 wrote to memory of 2524	2436	rundll32.exe	30
PID 2524 wrote to memory of 1940	2524	rundll32.exe	32
PID 2524 wrote to memory of 1940	2524	rundll32.exe	32
PID 2524 wrote to memory of 1940	2524	rundll32.exe	32
PID 2524 wrote to memory of 1940	2524	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\73e7b693263021c2c5636417ee501e70N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\73e7b693263021c2c5636417ee501e70N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2524
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 220
    3⤵
    - Program crash
    PID:1940

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/2524-0-0x0000000074F50000-0x0000000074F80000-memory.dmp

Filesize
192KB

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memory/2524-2-0x0000000000110000-0x0000000000116000-memory.dmp

Filesize
24KB

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