dridex | 679bea720c37e8c7fc28709f6ee60f71289200e31fe5c7723592a0c7ec0738a2

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-10-2024 22:14

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General

Target

679bea720c37e8c7fc28709f6ee60f71289200e31fe5c7723592a0c7ec0738a2.dll
Size

184KB
MD5

e290097a0ac0cd912c64157fb1de85b4
SHA1

d0e302ec3e6b70e042450444185a2b10c4012ffb
SHA256

679bea720c37e8c7fc28709f6ee60f71289200e31fe5c7723592a0c7ec0738a2
SHA512

6d7f7c3a89a4fb8f060d56731fd75b895023c9b25cf9952e23eb68c451b835caa689cfe916c7e2396f4305e62e0bbe16a77d46c5df06201c98fb20b2133e37c5
SSDEEP

3072:CJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8Jda//2uFrSc:jfYOX+wTScR/Xzku9LVw6uG

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

80.241.218.90:443

103.161.172.109:13786

87.98.128.76:5723

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/600-1-0x0000000074D00000-0x0000000074D2F000-memory.dmp	dridex_ldr
behavioral1/memory/600-2-0x0000000074D00000-0x0000000074D2F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2296 600 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
2296	600	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 1924 wrote to memory of 600	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 600	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 600	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 600	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 600	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 600	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 600	1924	rundll32.exe	rundll32.exe
PID 600 wrote to memory of 2296	600	rundll32.exe	WerFault.exe
PID 600 wrote to memory of 2296	600	rundll32.exe	WerFault.exe
PID 600 wrote to memory of 2296	600	rundll32.exe	WerFault.exe
PID 600 wrote to memory of 2296	600	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\679bea720c37e8c7fc28709f6ee60f71289200e31fe5c7723592a0c7ec0738a2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\679bea720c37e8c7fc28709f6ee60f71289200e31fe5c7723592a0c7ec0738a2.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:600
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 600 -s 220
    3⤵
    - Program crash
    PID:2296

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/600-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/600-1-0x0000000074D00000-0x0000000074D2F000-memory.dmp

Filesize
188KB

Download
memory/600-2-0x0000000074D00000-0x0000000074D2F000-memory.dmp

Filesize
188KB

Download
memory/600-4-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download