Malware Analysis Report

2025-08-10 23:23

Sample ID 241117-kwxyksvraw
Target c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c
SHA256 c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c
Tags
upx 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

c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c

Threat Level: Likely malicious

The file c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c was found to be: Likely malicious.

Malicious Activity Summary

upx discovery evasion execution

Stops running service(s)

Executes dropped EXE

Loads dropped DLL

UPX packed file

Drops file in System32 directory

Launches sc.exe

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-17 08:57

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-17 08:57

Reported

2024-11-17 09:00

Platform

win7-20240903-en

Max time kernel

121s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.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\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.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

UPX packed file

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

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\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe N/A
N/A N/A C:\Windows\SysWOW64\1230\smss.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2364 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe C:\Windows\SysWOW64\sc.exe
PID 2364 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe C:\Windows\SysWOW64\sc.exe
PID 2364 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe C:\Windows\SysWOW64\sc.exe
PID 2364 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe C:\Windows\SysWOW64\sc.exe
PID 2364 wrote to memory of 2328 N/A C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe C:\Windows\SysWOW64\1230\smss.exe
PID 2364 wrote to memory of 2328 N/A C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe C:\Windows\SysWOW64\1230\smss.exe
PID 2364 wrote to memory of 2328 N/A C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe C:\Windows\SysWOW64\1230\smss.exe
PID 2364 wrote to memory of 2328 N/A C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe C:\Windows\SysWOW64\1230\smss.exe
PID 2328 wrote to memory of 3008 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 2328 wrote to memory of 3008 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 2328 wrote to memory of 3008 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe
PID 2328 wrote to memory of 3008 N/A C:\Windows\SysWOW64\1230\smss.exe C:\Windows\SysWOW64\sc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe

"C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe"

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 wscsvc

Network

N/A

Files

memory/2364-0-0x0000000000400000-0x0000000000422000-memory.dmp

\Windows\SysWOW64\1230\smss.exe

MD5 c902ce5af13b5a0882daa5081fd01b33
SHA1 4aad53421aa023a560f953e61f4581a9e69bb2ca
SHA256 dd99010dbbd86d8a443f85c9aa5a6a980500c26c2b1b0ea451c244a9d3cb2988
SHA512 66cec42c9ab64342237fbd1830f74e47e4f8b3e6822f7438feaa16c832038b9eb09a5a72620a673d60b9ac5e02ebeca74133334c316f3c6cd983e62da0f91593

memory/2328-11-0x0000000000400000-0x0000000000422000-memory.dmp

memory/2328-19-0x0000000000400000-0x0000000000422000-memory.dmp

memory/2364-17-0x0000000000400000-0x0000000000422000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-17 08:57

Reported

2024-11-17 09:00

Platform

win10v2004-20241007-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.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\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.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

UPX packed file

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

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\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe N/A
N/A N/A C:\Windows\SysWOW64\1230\smss.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe

"C:\Users\Admin\AppData\Local\Temp\c14851d4a265b540e06fe62512b23177397c7163c953383c3ac4ee42258e2d8c.exe"

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 wscsvc

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/1472-0-0x0000000000400000-0x0000000000422000-memory.dmp

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

MD5 b6b650558e239e67bed82f1ca6f1273a
SHA1 4bfbe1bc06ba13f4c0256264bb84ca56626df4e8
SHA256 8849c824e3a435f6863af631ed2ba12efa72810878089ef36a7123a27dc0db6f
SHA512 f3a8a6338df8dcdf60a5f6e8397685433b3752cc072d1bec05d666a6afa63d8df02524326ed69d7841318b6985f5b8b5b8b69844141b00bc3a63c416e590be94

memory/1472-10-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1944-12-0x0000000000400000-0x0000000000422000-memory.dmp