dridex | 398729b4bd3b0cf6f612406ecc49fd1bccbb3b44ce8e2707cafde4ce44e26998

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
13-09-2024 14:15

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General

Target

172170ce52c51f27d6546029ad89fd10N.dll
Size

196KB
MD5

172170ce52c51f27d6546029ad89fd10
SHA1

3d43f76aa112727c9e3f299bd3fc328f2af2c04d
SHA256

398729b4bd3b0cf6f612406ecc49fd1bccbb3b44ce8e2707cafde4ce44e26998
SHA512

ed5d83915fb40f770cf9a49ff630a6d2d85d3fb170da4352a55222b2a2074e444e62aec31f41b4dbfe0b01a13ddbffc347ee1ae3fecf03ca1c4aad15f1a4dbac
SSDEEP

3072:GuCmyBVtWxZCOCA4Hpl1tv18FTETA8ocya/OyoSJPAacbnid8DOHPJ+HJA:6zWxkOP4p2EesvcDi6DOHPJr

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

resource	yara_rule
behavioral1/memory/2100-1-0x0000000075080000-0x00000000750B1000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2344	2100	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 2000 wrote to memory of 2100	2000	rundll32.exe	30
PID 2000 wrote to memory of 2100	2000	rundll32.exe	30
PID 2000 wrote to memory of 2100	2000	rundll32.exe	30
PID 2000 wrote to memory of 2100	2000	rundll32.exe	30
PID 2000 wrote to memory of 2100	2000	rundll32.exe	30
PID 2000 wrote to memory of 2100	2000	rundll32.exe	30
PID 2000 wrote to memory of 2100	2000	rundll32.exe	30
PID 2100 wrote to memory of 2344	2100	rundll32.exe	32
PID 2100 wrote to memory of 2344	2100	rundll32.exe	32
PID 2100 wrote to memory of 2344	2100	rundll32.exe	32
PID 2100 wrote to memory of 2344	2100	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\172170ce52c51f27d6546029ad89fd10N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\172170ce52c51f27d6546029ad89fd10N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 220
    3⤵
    - Program crash
    PID:2344

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/2100-0-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download
memory/2100-1-0x0000000075080000-0x00000000750B1000-memory.dmp

Filesize
196KB

Download
memory/2100-3-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download