dridex | 3a0249d1e5425f91aedc8274d62f0ce17eb5e078d603105d7e04c7538465349c

Analysis

max time kernel
107s
max time network
121s
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 04:49

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General

Target

89a675cf1ceeb6f1cf700fe020aa93a0N.dll
Size

184KB
MD5

89a675cf1ceeb6f1cf700fe020aa93a0
SHA1

88dda9e361fe6be33328689464b37f530e9e51db
SHA256

3a0249d1e5425f91aedc8274d62f0ce17eb5e078d603105d7e04c7538465349c
SHA512

3802a9ca297f354ace395104de3ea2cc0a2788315dfa91d101afa830fcf1a2564c512c98cbce077f62b21b40a6736b0ec943757b5e4102130883d51ed31a804d
SSDEEP

3072:cJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8JXa//2uFrSc:hfYOX+wTScR/Xzku9LVwsuG

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
behavioral2/memory/4780-0-0x0000000075620000-0x000000007564F000-memory.dmp	dridex_ldr
behavioral2/memory/4780-3-0x0000000075620000-0x000000007564F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
3828	4780	WerFault.exe	82

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 3608 wrote to memory of 4780	3608	rundll32.exe	82
PID 3608 wrote to memory of 4780	3608	rundll32.exe	82
PID 3608 wrote to memory of 4780	3608	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\89a675cf1ceeb6f1cf700fe020aa93a0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3608
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\89a675cf1ceeb6f1cf700fe020aa93a0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4780
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4780 -s 616
    3⤵
    - Program crash
    PID:3828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4780 -ip 4780
1⤵
PID:2004

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

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Downloads

memory/4780-0-0x0000000075620000-0x000000007564F000-memory.dmp

Filesize
188KB

Download
memory/4780-2-0x0000000001090000-0x0000000001096000-memory.dmp

Filesize
24KB

Download
memory/4780-3-0x0000000075620000-0x000000007564F000-memory.dmp

Filesize
188KB

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