dridex | da581d23ecb8dc00db136f253081d61e136a5f5ea819bd86129ad7b7edcdf9ff

Analysis

max time kernel
103s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-08-2024 03:17

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General

Target

6fa55c695c996793975f6ace567013c0N.dll
Size

184KB
MD5

6fa55c695c996793975f6ace567013c0
SHA1

6fcb675840be5c8ea53a7f68383b166bd71b57a3
SHA256

da581d23ecb8dc00db136f253081d61e136a5f5ea819bd86129ad7b7edcdf9ff
SHA512

7db88871381fa6f9a3c227323fe431aaf54947fd3c87145a3e5e2cb8b0df84549488b8b56f0b10a6a690ecce8752d7a85898f996852e9c6410ac894d33f49b03
SSDEEP

3072:liLVj+luuUXoPOK2z1WPRgg5YbW+d0Ojk1bSA5q/eaoMlzoxss7:liLVCIT4WK2z1W+CUHZj4Skq/eaoyoC

Score

10^/10

dridex 22202 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22202

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 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/1828-1-0x0000000074DA0000-0x0000000074DCF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
4516	1828	WerFault.exe	84

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 3 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 928 wrote to memory of 1828	928	rundll32.exe	84
PID 928 wrote to memory of 1828	928	rundll32.exe	84
PID 928 wrote to memory of 1828	928	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6fa55c695c996793975f6ace567013c0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:928
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6fa55c695c996793975f6ace567013c0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1828
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1828 -s 616
    3⤵
    - Program crash
    PID:4516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1828 -ip 1828
1⤵
PID:772

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/1828-0-0x0000000000E50000-0x0000000000E56000-memory.dmp

Filesize
24KB

Download
memory/1828-1-0x0000000074DA0000-0x0000000074DCF000-memory.dmp

Filesize
188KB

Download
memory/1828-3-0x0000000000E50000-0x0000000000E56000-memory.dmp

Filesize
24KB

Download