699ebcd7261ee4d77703e40c5516f33e1a1df5d55b211c864abb86b74b52ad95

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15-06-2024 22:19

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General

Target

krnl.exe
Size

2.2MB
MD5

3eb033ab0d3a63fd07abcf676c9ae3fb
SHA1

d42329938146081e43bf4105f30475c888df744f
SHA256

7d8f888fa63661fad1bbc57f7e88b4f7c50e65b70502d56d36c4b5d2c9effc63
SHA512

2b0e23893a88de7a1c35d43ee0ab264cad351d1b12fcff56beae7efd0636332ea7fa891e1965ed191bcd32bb614ec9742658812ea0d53ee2df4591236941d255
SSDEEP

49152:Q3nWGu3gXNoFbvNOL1b/HmDeH31vAN3/bk3gk:QXWGzovOl/HmiH31vAN0

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2396	krnl.exe

Loads dropped DLL 6 IoCs

pid	Process
2912	krnl.exe
2808	WerFault.exe
2808	WerFault.exe
2808	WerFault.exe
2808	WerFault.exe
2808	WerFault.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2808	2396	WerFault.exe	29

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2912	krnl.exe
Token: SeDebugPrivilege	2396	krnl.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2396	2912	krnl.exe	29
PID 2912 wrote to memory of 2396	2912	krnl.exe	29
PID 2912 wrote to memory of 2396	2912	krnl.exe	29
PID 2912 wrote to memory of 2396	2912	krnl.exe	29
PID 2396 wrote to memory of 2808	2396	krnl.exe	30
PID 2396 wrote to memory of 2808	2396	krnl.exe	30
PID 2396 wrote to memory of 2808	2396	krnl.exe	30
PID 2396 wrote to memory of 2808	2396	krnl.exe	30

C:\Users\Admin\AppData\Local\Temp\krnl.exe
"C:\Users\Admin\AppData\Local\Temp\krnl.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Users\Admin\Desktop\krnl\krnl.exe
  "C:\Users\Admin\Desktop\krnl\krnl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2396
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 708
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\Desktop\krnl\krnl.exe

Filesize
2.2MB

MD5
3eb033ab0d3a63fd07abcf676c9ae3fb

SHA1
d42329938146081e43bf4105f30475c888df744f

SHA256
7d8f888fa63661fad1bbc57f7e88b4f7c50e65b70502d56d36c4b5d2c9effc63

SHA512
2b0e23893a88de7a1c35d43ee0ab264cad351d1b12fcff56beae7efd0636332ea7fa891e1965ed191bcd32bb614ec9742658812ea0d53ee2df4591236941d255

Download Submit
memory/2396-46-0x00000000002F0000-0x0000000000532000-memory.dmp

Filesize
2.3MB

Download
memory/2912-0-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/2912-1-0x00000000003B0000-0x00000000005F2000-memory.dmp

Filesize
2.3MB

Download
memory/2912-2-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/2912-45-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download