dridex | c85b8803ce450f24ceb194c5989a902db2ab0571ff6cd7a49a31ba311d894f7c

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
20-08-2024 12:00

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General

Target

a9efaa71d389536c5df61fc6b6f110a0N.dll
Size

188KB
MD5

a9efaa71d389536c5df61fc6b6f110a0
SHA1

2ec1ff0e99203c24afc3d453eef53baea8a1ae42
SHA256

c85b8803ce450f24ceb194c5989a902db2ab0571ff6cd7a49a31ba311d894f7c
SHA512

721d02896886a55d5cf910a1fcbc0a3b7d4aeb1c2189993f4c94fceedc46109fd3881a897cdb1282d544250fb5ac53319c7460053aeed58a5fa81a9b31b28e92
SSDEEP

3072:LhYiCQXKgH7xFjsDlyk+AZ6cGdgwQDDu15/aE8tggrkVCuLnT:d7xFGlyfAZ5DDuLyqzT

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

134.209.182.12:443

188.40.100.254:4664

103.109.247.9:10443

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/1984-1-0x0000000074DE0000-0x0000000074E10000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2024	1984	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 2444 wrote to memory of 1984	2444	rundll32.exe	30
PID 2444 wrote to memory of 1984	2444	rundll32.exe	30
PID 2444 wrote to memory of 1984	2444	rundll32.exe	30
PID 2444 wrote to memory of 1984	2444	rundll32.exe	30
PID 2444 wrote to memory of 1984	2444	rundll32.exe	30
PID 2444 wrote to memory of 1984	2444	rundll32.exe	30
PID 2444 wrote to memory of 1984	2444	rundll32.exe	30
PID 1984 wrote to memory of 2024	1984	rundll32.exe	31
PID 1984 wrote to memory of 2024	1984	rundll32.exe	31
PID 1984 wrote to memory of 2024	1984	rundll32.exe	31
PID 1984 wrote to memory of 2024	1984	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9efaa71d389536c5df61fc6b6f110a0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9efaa71d389536c5df61fc6b6f110a0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1984 -s 252
    3⤵
    - Program crash
    PID:2024

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/1984-0-0x0000000000220000-0x0000000000226000-memory.dmp

Filesize
24KB

Download
memory/1984-1-0x0000000074DE0000-0x0000000074E10000-memory.dmp

Filesize
192KB

Download
memory/1984-3-0x0000000000220000-0x0000000000226000-memory.dmp

Filesize
24KB

Download