40c92384d321d4728f5f8a7e86066069313b91ed9368f0fa50a55b6ec7f72a25

Analysis

max time kernel
1776s
max time network
1780s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
05/08/2024, 00:37

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General

Target

KRNL-REBORN/krnl-reborn.dll
Size

5.3MB
MD5

e9921b7d3ff7044834e0c5998270cd0c
SHA1

e30c5794dbc92578d5bbd23d095a4a256caf4912
SHA256

c0e5c51445b189f8a17529ce8fce8d11ed7f99211e19684228fdd12366c458ab
SHA512

8a9a83050fee7084caa606f5e26018d4ce4b0a7a10e481fcdd8b1eae6c7b459dbe633b5b4b03b91d49427481f9e03880a64418a7e52ad6c06d25de98692a028e
SSDEEP

98304:QsK42Kx51uNmHTgZk74mqBjqSQWJuR7iGsMPD4nBx1GyePSByA5Pzm:Iwr154XBJQWaKSsnBv6a5Pz

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1052	4776	WerFault.exe	78

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 behavior: EnumeratesProcesses 10 IoCs

pid	Process
4776	rundll32.exe
4776	rundll32.exe
4776	rundll32.exe
4776	rundll32.exe
4776	rundll32.exe
4776	rundll32.exe
4776	rundll32.exe
4776	rundll32.exe
4776	rundll32.exe
4776	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 4776	2872	rundll32.exe	78
PID 2872 wrote to memory of 4776	2872	rundll32.exe	78
PID 2872 wrote to memory of 4776	2872	rundll32.exe	78

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\KRNL-REBORN\krnl-reborn.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\KRNL-REBORN\krnl-reborn.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4776
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 672
    3⤵
    - Program crash
    PID:1052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4776 -ip 4776
1⤵
PID:3796

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/4776-2-0x000000007481B000-0x0000000074A32000-memory.dmp

Filesize
2.1MB

Download
memory/4776-0-0x00000000028C0000-0x00000000028C1000-memory.dmp

Filesize
4KB

Download
memory/4776-5-0x0000000074220000-0x0000000074F8C000-memory.dmp

Filesize
13.4MB

Download
memory/4776-6-0x0000000074220000-0x0000000074F8C000-memory.dmp

Filesize
13.4MB

Download
memory/4776-7-0x0000000074220000-0x0000000074F8C000-memory.dmp

Filesize
13.4MB

Download
memory/4776-8-0x0000000074220000-0x0000000074F8C000-memory.dmp

Filesize
13.4MB

Download
memory/4776-10-0x000000007481B000-0x0000000074A32000-memory.dmp

Filesize
2.1MB

Download
memory/4776-9-0x0000000074220000-0x0000000074F8C000-memory.dmp

Filesize
13.4MB

Download
memory/4776-11-0x0000000074220000-0x0000000074F8C000-memory.dmp

Filesize
13.4MB

Download