7b0488c2766c7fa58ff8e3d2ef8a3b0d2546eec32775304b779de94fbc996014

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22/07/2024, 09:14

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General

Target

8f1d680385a2214ef98d894e1c40a9f0N.exe
Size

139KB
MD5

8f1d680385a2214ef98d894e1c40a9f0
SHA1

2e44971493cf988a187a609f12dffa3494d34fcb
SHA256

7b0488c2766c7fa58ff8e3d2ef8a3b0d2546eec32775304b779de94fbc996014
SHA512

f8bdaad26b50b80253b74480e043d0a709d9a0b6d7fec485f8e6362145d4dd99df7b3f5bf9db7443e08066d6e834129d03d0da5383fc3b3d2c079b0dea723ec0
SSDEEP

1536:rC2/fYuPfbESFYXRWhpKRycRd57JkIqFHhzm4hWru/BzihhMN45MF5FvHP132xPi:r7YubEwYXRWhpAJUHhzm4hUukS6Kmeco

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
2688	smss.exe

Loads dropped DLL 2 IoCs

pid	Process
2180	8f1d680385a2214ef98d894e1c40a9f0N.exe
2180	8f1d680385a2214ef98d894e1c40a9f0N.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	8f1d680385a2214ef98d894e1c40a9f0N.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 4 IoCs

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

pid	Process
2852	sc.exe
1808	sc.exe
2748	sc.exe
2684	sc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2180	8f1d680385a2214ef98d894e1c40a9f0N.exe
2688	smss.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2852	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	30
PID 2180 wrote to memory of 2852	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	30
PID 2180 wrote to memory of 2852	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	30
PID 2180 wrote to memory of 2852	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	30
PID 2180 wrote to memory of 1808	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	32
PID 2180 wrote to memory of 1808	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	32
PID 2180 wrote to memory of 1808	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	32
PID 2180 wrote to memory of 1808	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	32
PID 2180 wrote to memory of 2688	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	34
PID 2180 wrote to memory of 2688	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	34
PID 2180 wrote to memory of 2688	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	34
PID 2180 wrote to memory of 2688	2180	8f1d680385a2214ef98d894e1c40a9f0N.exe	34
PID 2688 wrote to memory of 2748	2688	smss.exe	35
PID 2688 wrote to memory of 2748	2688	smss.exe	35
PID 2688 wrote to memory of 2748	2688	smss.exe	35
PID 2688 wrote to memory of 2748	2688	smss.exe	35
PID 2688 wrote to memory of 2684	2688	smss.exe	37
PID 2688 wrote to memory of 2684	2688	smss.exe	37
PID 2688 wrote to memory of 2684	2688	smss.exe	37
PID 2688 wrote to memory of 2684	2688	smss.exe	37

C:\Users\Admin\AppData\Local\Temp\8f1d680385a2214ef98d894e1c40a9f0N.exe
"C:\Users\Admin\AppData\Local\Temp\8f1d680385a2214ef98d894e1c40a9f0N.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop SharedAccess
  2⤵
  - Launches sc.exe
  PID:2852
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  PID:1808
- 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:2688
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop SharedAccess
    3⤵
    - Launches sc.exe
    PID:2748
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    PID:2684

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

\Windows\SysWOW64\1230\smss.exe

Filesize
139KB

MD5
8dc98db6af939407cdef7200d178d336

SHA1
1415471fdce306cc1bbbf3c51a1ac22a9a9ca0b4

SHA256
fd18c0d8967930d2227e093cd92d81209e8d07b1a20c172eeb3c2cf0ad3baf14

SHA512
8eb0cd7bf5d363a1c9e9c024edaba6cc4fca5b7e145ac7b88fd13ec7dc477003925b6df3247fc5543d30af977268fec1bcac41852fd8d1d13ed896b92ef6dd5b

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