Malware Analysis Report

2025-04-14 03:39

Sample ID 240612-s2svtazfqg
Target 0255cb588a0bbcc161ff918045851a7711cb77c7782a49756e1477694b348678
SHA256 0255cb588a0bbcc161ff918045851a7711cb77c7782a49756e1477694b348678
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

0255cb588a0bbcc161ff918045851a7711cb77c7782a49756e1477694b348678

Threat Level: Shows suspicious behavior

The file 0255cb588a0bbcc161ff918045851a7711cb77c7782a49756e1477694b348678 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx

UPX packed file

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-12 15:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 15:37

Reported

2024-06-12 15:40

Platform

win7-20240419-en

Max time kernel

120s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0255cb588a0bbcc161ff918045851a7711cb77c7782a49756e1477694b348678.dll,#1

Signatures

UPX packed file

upx
Description Indicator Process Target
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 behavior: EnumeratesProcesses

Description Indicator Process Target
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 SetWindowsHookEx

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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0255cb588a0bbcc161ff918045851a7711cb77c7782a49756e1477694b348678.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0255cb588a0bbcc161ff918045851a7711cb77c7782a49756e1477694b348678.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3016 -s 384

Network

N/A

Files

memory/3016-19-0x00000000001F0000-0x00000000001F1000-memory.dmp

memory/3016-17-0x00000000001F0000-0x00000000001F1000-memory.dmp

memory/3016-14-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/3016-12-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/3016-10-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/3016-9-0x0000000000120000-0x0000000000121000-memory.dmp

memory/3016-7-0x0000000000120000-0x0000000000121000-memory.dmp

memory/3016-5-0x0000000000120000-0x0000000000121000-memory.dmp

memory/3016-4-0x0000000000110000-0x0000000000111000-memory.dmp

memory/3016-2-0x0000000000110000-0x0000000000111000-memory.dmp

memory/3016-0-0x0000000000110000-0x0000000000111000-memory.dmp

memory/3016-37-0x0000000000280000-0x000000000028B000-memory.dmp

memory/3016-38-0x0000000010000000-0x0000000010E38000-memory.dmp

memory/3016-39-0x0000000010000000-0x0000000010E38000-memory.dmp

memory/3016-34-0x00000000101C9000-0x0000000010655000-memory.dmp

memory/3016-32-0x0000000000260000-0x0000000000261000-memory.dmp

memory/3016-30-0x0000000000260000-0x0000000000261000-memory.dmp

memory/3016-27-0x0000000000250000-0x0000000000251000-memory.dmp

memory/3016-25-0x0000000000250000-0x0000000000251000-memory.dmp

memory/3016-22-0x0000000000240000-0x0000000000241000-memory.dmp

memory/3016-21-0x0000000000240000-0x0000000000241000-memory.dmp

memory/3016-40-0x00000000101C9000-0x0000000010655000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 15:37

Reported

2024-06-12 15:40

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

155s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0255cb588a0bbcc161ff918045851a7711cb77c7782a49756e1477694b348678.dll,#1

Signatures

UPX packed file

upx
Description Indicator Process Target
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 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 SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3132 wrote to memory of 392 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3132 wrote to memory of 392 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3132 wrote to memory of 392 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\0255cb588a0bbcc161ff918045851a7711cb77c7782a49756e1477694b348678.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0255cb588a0bbcc161ff918045851a7711cb77c7782a49756e1477694b348678.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 392 -ip 392

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 788

Network

Files

memory/392-2-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

memory/392-9-0x0000000010000000-0x0000000010E38000-memory.dmp

memory/392-4-0x0000000002600000-0x0000000002601000-memory.dmp

memory/392-7-0x0000000002620000-0x0000000002621000-memory.dmp

memory/392-6-0x00000000101C9000-0x0000000010655000-memory.dmp

memory/392-5-0x0000000002610000-0x0000000002611000-memory.dmp

memory/392-3-0x00000000025F0000-0x00000000025F1000-memory.dmp

memory/392-0-0x00000000007E0000-0x00000000007E1000-memory.dmp

memory/392-11-0x0000000002850000-0x000000000285B000-memory.dmp

memory/392-1-0x00000000007F0000-0x00000000007F1000-memory.dmp

memory/392-12-0x0000000010000000-0x0000000010E38000-memory.dmp

memory/392-13-0x0000000010000000-0x0000000010E38000-memory.dmp

memory/392-14-0x00000000101C9000-0x0000000010655000-memory.dmp