Malware Analysis Report

2025-04-13 21:40

Sample ID 240825-lkhvysyglp
Target 295299302ec143fc2fe88953f8d18f50N.exe
SHA256 fa388a99f5a0f3e29032a08e856a64fca0948ee0e9c7af6f99f47cd547aa7a88
Tags
discovery evasion execution
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

fa388a99f5a0f3e29032a08e856a64fca0948ee0e9c7af6f99f47cd547aa7a88

Threat Level: Likely malicious

The file 295299302ec143fc2fe88953f8d18f50N.exe was found to be: Likely malicious.

Malicious Activity Summary

discovery evasion execution

Stops running service(s)

Executes dropped EXE

Loads dropped DLL

Drops file in System32 directory

Launches sc.exe

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 09:35

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-25 09:35

Reported

2024-08-25 09:37

Platform

win7-20240704-en

Max time kernel

15s

Max time network

21s

Command Line

"C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe"

Signatures

Stops running service(s)

evasion execution

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\1230\smss.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\1230\smss.exe C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe N/A
File opened for modification C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\1230\smss.exe N/A
File opened for modification C:\Windows\SysWOW64\Service.exe C:\Windows\SysWOW64\1230\smss.exe N/A

Launches sc.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\sc.exe N/A
N/A N/A C:\Windows\SysWOW64\sc.exe N/A
N/A N/A C:\Windows\SysWOW64\sc.exe N/A
N/A N/A C:\Windows\SysWOW64\sc.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\1230\smss.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe N/A
N/A N/A C:\Windows\SysWOW64\1230\smss.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1864 wrote to memory of 572 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 1864 wrote to memory of 572 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 1864 wrote to memory of 572 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 1864 wrote to memory of 572 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 1864 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 1864 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 1864 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 1864 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 1864 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\1230\smss.exe
PID 1864 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\1230\smss.exe
PID 1864 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\1230\smss.exe
PID 1864 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\1230\smss.exe
PID 2316 wrote to memory of 3028 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 2316 wrote to memory of 3028 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 2316 wrote to memory of 3028 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 2316 wrote to memory of 3028 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 2316 wrote to memory of 3060 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 2316 wrote to memory of 3060 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 2316 wrote to memory of 3060 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 2316 wrote to memory of 3060 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe

"C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe"

C:\Windows\SysWOW64\sc.exe

C:\Windows\system32\sc.exe stop SharedAccess

C:\Windows\SysWOW64\sc.exe

C:\Windows\system32\sc.exe stop wscsvc

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

C:\Windows\system32\1230\smss.exe -d

C:\Windows\SysWOW64\sc.exe

C:\Windows\system32\sc.exe stop SharedAccess

C:\Windows\SysWOW64\sc.exe

C:\Windows\system32\sc.exe stop wscsvc

Network

N/A

Files

\Windows\SysWOW64\1230\smss.exe

MD5 886cccf7e9cca0f84e8e81e5f8ced78b
SHA1 10a3521729b49b856ca7406e4cd3acb70c8eedc7
SHA256 4f79092eeabc02553bec6b1fbc46a0a7202df301b92b715b109c175c78296b95
SHA512 5f27a5c7ec7b02da0a9b454a6b1b0345b304623cf0c41ed6acbb85a5b2fce9878c927aebc8b5faf45793eb40299c38a72fabc80cfafcc105f2337dfe0d70d6ee

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-25 09:35

Reported

2024-08-25 09:37

Platform

win10v2004-20240802-en

Max time kernel

98s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe"

Signatures

Stops running service(s)

evasion execution

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\1230\smss.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\1230\smss.exe C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe N/A
File opened for modification C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\1230\smss.exe N/A
File opened for modification C:\Windows\SysWOW64\Service.exe C:\Windows\SysWOW64\1230\smss.exe N/A

Launches sc.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\sc.exe N/A
N/A N/A C:\Windows\SysWOW64\sc.exe N/A
N/A N/A C:\Windows\SysWOW64\sc.exe N/A
N/A N/A C:\Windows\SysWOW64\sc.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\1230\smss.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe N/A
N/A N/A C:\Windows\SysWOW64\1230\smss.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4964 wrote to memory of 4960 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 4964 wrote to memory of 4960 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 4964 wrote to memory of 4960 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 4964 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 4964 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 4964 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\sc.exe
PID 4964 wrote to memory of 636 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\1230\smss.exe
PID 4964 wrote to memory of 636 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\1230\smss.exe
PID 4964 wrote to memory of 636 N/A C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe C:\Windows\SysWOW64\1230\smss.exe
PID 636 wrote to memory of 756 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 636 wrote to memory of 756 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 636 wrote to memory of 756 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 636 wrote to memory of 1420 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 636 wrote to memory of 1420 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 636 wrote to memory of 1420 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe

"C:\Users\Admin\AppData\Local\Temp\295299302ec143fc2fe88953f8d18f50N.exe"

C:\Windows\SysWOW64\sc.exe

C:\Windows\system32\sc.exe stop SharedAccess

C:\Windows\SysWOW64\sc.exe

C:\Windows\system32\sc.exe stop wscsvc

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

C:\Windows\system32\1230\smss.exe -d

C:\Windows\SysWOW64\sc.exe

C:\Windows\system32\sc.exe stop SharedAccess

C:\Windows\SysWOW64\sc.exe

C:\Windows\system32\sc.exe stop wscsvc

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

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

MD5 7cc6904064d2fbb8f30f97f37322115f
SHA1 3294435c4203a8f7b379ba71682a4631c9fd5a64
SHA256 fc1e23cc0fa24a2f3ab241043700602dc0561d9902b6c8cb44ac97d636d94eaf
SHA512 ca05e3e26ebf523e21847c49b353844de0861e82c9edc1d4bb31b25480387063779c91e2084e2388223e353edc5aec009485d1dbff9118d48f0aba4038552252