Malware Analysis Report

2025-08-05 21:21

Sample ID 240305-g1dtqagd6y
Target b3fdd1f9edfd6a95d86dc7ce3314bd92
SHA256 501cea056acca27b94609c8a51a4535b841a3d1b3338de2c80402b050f5f5995
Tags
aspackv2
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

501cea056acca27b94609c8a51a4535b841a3d1b3338de2c80402b050f5f5995

Threat Level: Shows suspicious behavior

The file b3fdd1f9edfd6a95d86dc7ce3314bd92 was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2

ASPack v2.12-2.42

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-05 06:15

Signatures

ASPack v2.12-2.42

aspackv2
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

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-05 06:15

Reported

2024-03-05 06:18

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3fdd1f9edfd6a95d86dc7ce3314bd92.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3404 wrote to memory of 5028 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3404 wrote to memory of 5028 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3404 wrote to memory of 5028 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\b3fdd1f9edfd6a95d86dc7ce3314bd92.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3fdd1f9edfd6a95d86dc7ce3314bd92.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
NL 52.111.243.29:443 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 195.98.74.40.in-addr.arpa udp
GB 96.17.178.176:80 tcp

Files

memory/5028-0-0x0000000000400000-0x000000000044E000-memory.dmp

memory/5028-1-0x0000000001230000-0x0000000001280000-memory.dmp

memory/5028-3-0x0000000001380000-0x0000000001381000-memory.dmp

memory/5028-2-0x0000000002B40000-0x0000000002B41000-memory.dmp

memory/5028-5-0x0000000002B80000-0x0000000002B81000-memory.dmp

memory/5028-4-0x0000000002B70000-0x0000000002B71000-memory.dmp

memory/5028-7-0x0000000003480000-0x0000000003481000-memory.dmp

memory/5028-6-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/5028-8-0x0000000003480000-0x0000000003481000-memory.dmp

memory/5028-9-0x0000000003480000-0x0000000003481000-memory.dmp

memory/5028-10-0x0000000003480000-0x0000000003481000-memory.dmp

memory/5028-11-0x0000000003480000-0x0000000003481000-memory.dmp

memory/5028-12-0x0000000003480000-0x0000000003481000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-05 06:15

Reported

2024-03-05 06:18

Platform

win7-20240221-en

Max time kernel

0s

Max time network

3s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3fdd1f9edfd6a95d86dc7ce3314bd92.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1956 wrote to memory of 2944 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1956 wrote to memory of 2944 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1956 wrote to memory of 2944 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1956 wrote to memory of 2944 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1956 wrote to memory of 2944 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1956 wrote to memory of 2944 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1956 wrote to memory of 2944 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\b3fdd1f9edfd6a95d86dc7ce3314bd92.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3fdd1f9edfd6a95d86dc7ce3314bd92.dll,#1

Network

N/A

Files

memory/2944-0-0x0000000000250000-0x000000000029E000-memory.dmp

memory/2944-1-0x0000000000250000-0x000000000029E000-memory.dmp

memory/2944-2-0x0000000000250000-0x000000000029E000-memory.dmp