Malware Analysis Report

2024-10-10 12:45

Sample ID 240613-19cgsssepb
Target 482c7fe71a5a9152246ead6ec7231e2210893ee6cc030d12be73f97ea5fb1ec0
SHA256 482c7fe71a5a9152246ead6ec7231e2210893ee6cc030d12be73f97ea5fb1ec0
Tags
upx persistence
score
10/10

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
10/10

SHA256

482c7fe71a5a9152246ead6ec7231e2210893ee6cc030d12be73f97ea5fb1ec0

Threat Level: Known bad

The file 482c7fe71a5a9152246ead6ec7231e2210893ee6cc030d12be73f97ea5fb1ec0 was found to be: Known bad.

Malicious Activity Summary

upx persistence

UPX dump on OEP (original entry point)

UPX dump on OEP (original entry point)

Modifies AppInit DLL entries

ACProtect 1.3x - 1.4x DLL software

UPX packed file

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 22:20

Signatures

UPX dump on OEP (original entry point)

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

ACProtect 1.3x - 1.4x DLL software

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

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

2024-06-13 22:20

Reported

2024-06-13 22:23

Platform

win7-20240611-en

Max time kernel

141s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\482c7fe71a5a9152246ead6ec7231e2210893ee6cc030d12be73f97ea5fb1ec0.dll,#1

Signatures

UPX dump on OEP (original entry point)

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

Modifies AppInit DLL entries

persistence

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

Program crash

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

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\482c7fe71a5a9152246ead6ec7231e2210893ee6cc030d12be73f97ea5fb1ec0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\482c7fe71a5a9152246ead6ec7231e2210893ee6cc030d12be73f97ea5fb1ec0.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 328

Network

N/A

Files

memory/3024-7-0x0000000010000000-0x0000000010030000-memory.dmp

memory/3024-8-0x0000000010000000-0x0000000010030000-memory.dmp

memory/3024-6-0x0000000010000000-0x0000000010030000-memory.dmp

memory/3024-0-0x0000000000070000-0x0000000000071000-memory.dmp

memory/3024-9-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 22:20

Reported

2024-06-13 22:23

Platform

win10v2004-20240508-en

Max time kernel

140s

Max time network

102s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\482c7fe71a5a9152246ead6ec7231e2210893ee6cc030d12be73f97ea5fb1ec0.dll,#1

Signatures

UPX dump on OEP (original entry point)

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

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4852 wrote to memory of 3904 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4852 wrote to memory of 3904 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4852 wrote to memory of 3904 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\482c7fe71a5a9152246ead6ec7231e2210893ee6cc030d12be73f97ea5fb1ec0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\482c7fe71a5a9152246ead6ec7231e2210893ee6cc030d12be73f97ea5fb1ec0.dll,#1

Network

Country Destination Domain Proto
US 52.111.227.14:443 tcp

Files

memory/3904-0-0x0000000010000000-0x0000000010030000-memory.dmp

memory/3904-1-0x0000000010000000-0x0000000010030000-memory.dmp