Malware Analysis Report

2025-08-10 12:16

Sample ID 240610-1smw7ssblb
Target VirusShare_b0adddc4b40e54f17d64148aea1f56c2
SHA256 312b5be57aee11455e879c40b2189f47d55b16996f5d6f6af980b9888e31c54a
Tags
upx
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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
7/10

SHA256

312b5be57aee11455e879c40b2189f47d55b16996f5d6f6af980b9888e31c54a

Threat Level: Shows suspicious behavior

The file VirusShare_b0adddc4b40e54f17d64148aea1f56c2 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx

UPX packed file

Drops file in Program Files directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-10 21:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-10 21:54

Reported

2024-06-10 21:57

Platform

win7-20240221-en

Max time kernel

140s

Max time network

118s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\VirusShare_b0adddc4b40e54f17d64148aea1f56c2.dll,#1

Signatures

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\9590EAB82.cpp C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 0 N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2164 wrote to memory of 2872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 2872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 2872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 2872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 2872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 2872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 2872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\VirusShare_b0adddc4b40e54f17d64148aea1f56c2.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\VirusShare_b0adddc4b40e54f17d64148aea1f56c2.dll,#1

Network

N/A

Files

memory/2872-0-0x00000000753D0000-0x00000000753F3000-memory.dmp

memory/2872-3-0x00000000753E6000-0x00000000753F2000-memory.dmp

memory/2872-4-0x00000000753D0000-0x00000000753F3000-memory.dmp

memory/2872-2-0x0000000000110000-0x0000000000111000-memory.dmp

memory/2872-6-0x00000000753D0000-0x00000000753F3000-memory.dmp

memory/2872-8-0x00000000753E6000-0x00000000753F2000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 21:54

Reported

2024-06-10 21:57

Platform

win10v2004-20240426-en

Max time kernel

141s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\VirusShare_b0adddc4b40e54f17d64148aea1f56c2.dll,#1

Signatures

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\BAAF18F70.cpp C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 0 N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4072 wrote to memory of 5104 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4072 wrote to memory of 5104 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4072 wrote to memory of 5104 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\VirusShare_b0adddc4b40e54f17d64148aea1f56c2.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\VirusShare_b0adddc4b40e54f17d64148aea1f56c2.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp

Files

memory/5104-0-0x0000000075370000-0x0000000075393000-memory.dmp

memory/5104-3-0x0000000075386000-0x0000000075392000-memory.dmp

memory/5104-4-0x0000000075370000-0x0000000075393000-memory.dmp

memory/5104-2-0x0000000001510000-0x0000000001511000-memory.dmp

memory/5104-6-0x0000000075370000-0x0000000075393000-memory.dmp

memory/5104-8-0x0000000075386000-0x0000000075392000-memory.dmp