dridex | e83cff5322e8e8d608328b33c5cc62a31e2370530d80e735ddbc5a477e6579ec

Analysis

max time kernel
93s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 06:45

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General

Target

e83cff5322e8e8d608328b33c5cc62a31e2370530d80e735ddbc5a477e6579ec.dll
Size

188KB
MD5

dcdbb45851110eec62c44ed6a3eedf8b
SHA1

a08c0a393f772b5631e300203224f637fe58d575
SHA256

e83cff5322e8e8d608328b33c5cc62a31e2370530d80e735ddbc5a477e6579ec
SHA512

4894d465e8afe2da04467370a3cfbc7d1209ecdd06ca70356b12e474618f1ae1880aa5ce818fc6437379e1f36f791da2bc0af297bc486dcb937430e628fa3319
SSDEEP

3072:hA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAoto:hzIqATVfQeV2FZalKq6jtGJWuTmd

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

103.82.248.59:443

54.39.98.141:6602

103.109.247.8:10443

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

resource	yara_rule
behavioral2/memory/3756-0-0x00000000751C0000-0x00000000751F0000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1428	3756	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 2636 wrote to memory of 3756	2636	rundll32.exe	84
PID 2636 wrote to memory of 3756	2636	rundll32.exe	84
PID 2636 wrote to memory of 3756	2636	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e83cff5322e8e8d608328b33c5cc62a31e2370530d80e735ddbc5a477e6579ec.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e83cff5322e8e8d608328b33c5cc62a31e2370530d80e735ddbc5a477e6579ec.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3756
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3756 -s 700
    3⤵
    - Program crash
    PID:1428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3756 -ip 3756
1⤵
PID:4196

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/3756-0-0x00000000751C0000-0x00000000751F0000-memory.dmp

Filesize
192KB

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memory/3756-2-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

Filesize
24KB

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