dridex | f7951e7902d40db690203a808c2f1da49a9e9b44dbf68d38f420b9781811dd4c

Analysis

max time kernel
104s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15/08/2024, 22:29

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General

Target
327074efb47343ad7570ca2ac5a4ca50N.dll
Size 184KB
Sample240815-2d9cbstalr
SHA256 f7951e7902d40db690203a808c2f1da49a9e9b44dbf68d38f420b9781811dd4c
MD5 327074efb47343ad7570ca2ac5a4ca50
SHA1 a3aecdec672dab53420b709b0b3513e9008d12f1
SHA512 d018fe50268fea896fc75e6df35a60f7c445f379f9c6f8bc40709f51c65c6dd94c117f939dc1e823b56bf397476309bfa4944cb4132b7a021b0a06ac82df8db2
SSDEEP 3072:7iLVj+luuUXoPOK2z1WPRgg5YbW+d0Ojk1bSA5q/eaoYlzoxss7:7iLVCIT4WK2z1W+CUHZj4Skq/eaoGoC
MD5 SHA1 SHA512 SSDEEP

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

resource	yara_rule
behavioral2/memory/4464-0-0x0000000075380000-0x00000000753AF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
932	4464	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 4464	4140	rundll32.exe	84
PID 4140 wrote to memory of 4464	4140	rundll32.exe	84
PID 4140 wrote to memory of 4464	4140	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\327074efb47343ad7570ca2ac5a4ca50N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\327074efb47343ad7570ca2ac5a4ca50N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4464
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 616
    3⤵
    - Program crash
    PID:932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4464 -ip 4464
1⤵
PID:3008

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/4464-0-0x0000000075380000-0x00000000753AF000-memory.dmp

Download

memory/4464-2-0x0000000000D00000-0x0000000000D06000-memory.dmp