8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5

Analysis

max time kernel
142s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2024, 00:05

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General

Target

8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe
Size

119KB
MD5

db5a6fe159f5803d4d31d8ec281b72a8
SHA1

eadaff849a1796b6559e3c56142e5eee0e033988
SHA256

8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5
SHA512

d9a11a34d737e54b36c512df82e23d5be761e266502c59555d7e1360a4f39212df3ac20c9877d15a7d8d8f9fdf5b80fad502c54dc949efb0475d3d70ca419ada
SSDEEP

3072:OE9j8b3ZXgKC1hX//iASOXRJzDOD26j/3Dct:OEebiKuX//iZOXRJ3OD26jQ

Score

8^/10

evasion execution

Malware Config

Signatures

Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Executes dropped EXE 1 IoCs

pid	Process
3948	smss.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	smss.exe
File opened for modification	C:\Windows\SysWOW64\Service.exe	smss.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1604	sc.exe
4168	sc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4164	8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe
3948	smss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4164 wrote to memory of 1604	4164	8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe	82
PID 4164 wrote to memory of 1604	4164	8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe	82
PID 4164 wrote to memory of 1604	4164	8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe	82
PID 4164 wrote to memory of 3948	4164	8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe	84
PID 4164 wrote to memory of 3948	4164	8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe	84
PID 4164 wrote to memory of 3948	4164	8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe	84
PID 3948 wrote to memory of 4168	3948	smss.exe	85
PID 3948 wrote to memory of 4168	3948	smss.exe	85
PID 3948 wrote to memory of 4168	3948	smss.exe	85

C:\Users\Admin\AppData\Local\Temp\8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe
"C:\Users\Admin\AppData\Local\Temp\8c6efc34597ebe3b44b5f42ea50028c1b68a6024af64f91909713359bbb401d5.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4164
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  PID:1604
- C:\Windows\SysWOW64\1230\smss.exe
  C:\Windows\system32\1230\smss.exe -d
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3948
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    PID:4168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

C:\Windows\SysWOW64\1230\smss.exe

Filesize
119KB

MD5
b41faacdf05c5a7a53eeee93bd13ecff

SHA1
d2bbb443c0dc69a78691ea2803bb7f1cff9d87c9

SHA256
17fdeb28a18a6878ec39b04100989c35792733adac8c49e1b6a58cc617b0d5a6

SHA512
331dcc29b82365d75f4e80158424613091fb1f4a637555b73e3e061d8cd813392823a00dc79e368cff4d52aa0f66ce8a3f16f1be7f49540ba62e1d71bd0bc3e9

Download Submit
memory/4164-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

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