40c92384d321d4728f5f8a7e86066069313b91ed9368f0fa50a55b6ec7f72a25

Resubmissions

04-08-2024 00:17

240804-ak55pszfmn 7

04-08-2024 00:15

240804-ajxryavcrf 7

Analysis

max time kernel
92s
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
04-08-2024 00:17

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Report Analysis Logs

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

Processes:

WerFault.exe

pid pid_target process target process

1020 3116 WerFault.exe rundll32.exe
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

pid	pid_target	process	target process
1020	3116	WerFault.exe	rundll32.exe

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

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

rundll32.exe

pid	process
3116	rundll32.exe
3116	rundll32.exe
3116	rundll32.exe
3116	rundll32.exe
3116	rundll32.exe
3116	rundll32.exe
3116	rundll32.exe
3116	rundll32.exe
3116	rundll32.exe
3116	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2348 wrote to memory of 3116	2348	rundll32.exe	rundll32.exe
PID 2348 wrote to memory of 3116	2348	rundll32.exe	rundll32.exe
PID 2348 wrote to memory of 3116	2348	rundll32.exe	rundll32.exe

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:2348
- 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:3116
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3116 -s 708
    3⤵
    - Program crash
    PID:1020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3116 -ip 3116
1⤵
PID:1760

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/3116-0-0x0000000074EEB000-0x0000000075102000-memory.dmp

Filesize
2.1MB

Download
memory/3116-1-0x00000000013B0000-0x00000000013B1000-memory.dmp

Filesize
4KB

Download
memory/3116-5-0x00000000748F0000-0x000000007565C000-memory.dmp

Filesize
13.4MB

Download
memory/3116-4-0x00000000748F0000-0x000000007565C000-memory.dmp

Filesize
13.4MB

Download
memory/3116-6-0x00000000748F0000-0x000000007565C000-memory.dmp

Filesize
13.4MB

Download
memory/3116-7-0x00000000748F0000-0x000000007565C000-memory.dmp

Filesize
13.4MB

Download
memory/3116-8-0x0000000074EEB000-0x0000000075102000-memory.dmp

Filesize
2.1MB

Download
memory/3116-9-0x00000000748F0000-0x000000007565C000-memory.dmp

Filesize
13.4MB

Download
memory/3116-10-0x00000000748F0000-0x000000007565C000-memory.dmp

Filesize
13.4MB

Download
memory/3116-11-0x00000000748F0000-0x000000007565C000-memory.dmp

Filesize
13.4MB

Download