Malware Analysis Report

2025-08-05 21:22

Sample ID 240305-awn1kahh94
Target b3562c5cf5e860f4d57c65e7bc34a395
SHA256 57572b71b3b27b0590e116633952cc50c2649b1f8a5a0733b926b87d2d35ebfd
Tags
aspackv2
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

57572b71b3b27b0590e116633952cc50c2649b1f8a5a0733b926b87d2d35ebfd

Threat Level: Shows suspicious behavior

The file b3562c5cf5e860f4d57c65e7bc34a395 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 00:33

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: behavioral1

Detonation Overview

Submitted

2024-03-05 00:33

Reported

2024-03-05 00:36

Platform

win7-20240221-en

Max time kernel

120s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3562c5cf5e860f4d57c65e7bc34a395.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2060 wrote to memory of 2372 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2060 wrote to memory of 2372 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2060 wrote to memory of 2372 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2060 wrote to memory of 2372 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2060 wrote to memory of 2372 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2060 wrote to memory of 2372 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2060 wrote to memory of 2372 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\b3562c5cf5e860f4d57c65e7bc34a395.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3562c5cf5e860f4d57c65e7bc34a395.dll,#1

Network

N/A

Files

memory/2372-0-0x0000000000960000-0x0000000000D98000-memory.dmp

memory/2372-2-0x0000000000960000-0x0000000000D98000-memory.dmp

memory/2372-1-0x00000000008F0000-0x00000000008F1000-memory.dmp

memory/2372-5-0x0000000000760000-0x00000000007B0000-memory.dmp

memory/2372-6-0x0000000000960000-0x0000000000D98000-memory.dmp

memory/2372-4-0x0000000000960000-0x0000000000D98000-memory.dmp

memory/2372-8-0x0000000000400000-0x0000000000401000-memory.dmp

memory/2372-9-0x00000000003F0000-0x00000000003F1000-memory.dmp

memory/2372-10-0x0000000000640000-0x0000000000641000-memory.dmp

memory/2372-11-0x0000000000640000-0x0000000000641000-memory.dmp

memory/2372-12-0x0000000000640000-0x0000000000641000-memory.dmp

memory/2372-13-0x0000000000640000-0x0000000000641000-memory.dmp

memory/2372-14-0x0000000000640000-0x0000000000641000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-05 00:33

Reported

2024-03-05 00:36

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

155s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3562c5cf5e860f4d57c65e7bc34a395.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4800 wrote to memory of 2608 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4800 wrote to memory of 2608 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4800 wrote to memory of 2608 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\b3562c5cf5e860f4d57c65e7bc34a395.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3562c5cf5e860f4d57c65e7bc34a395.dll,#1

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4032 --field-trial-handle=2432,i,12161922670941700748,3348345705955601576,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.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 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.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 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 211.178.17.96.in-addr.arpa udp
GB 96.17.178.211:80 tcp

Files

memory/2608-0-0x0000000002500000-0x0000000002938000-memory.dmp

memory/2608-1-0x0000000002990000-0x00000000029E0000-memory.dmp

memory/2608-2-0x0000000002AF0000-0x0000000002AF1000-memory.dmp

memory/2608-3-0x0000000002AE0000-0x0000000002AE1000-memory.dmp

memory/2608-4-0x0000000002B20000-0x0000000002B21000-memory.dmp

memory/2608-5-0x0000000002B30000-0x0000000002B31000-memory.dmp

memory/2608-6-0x0000000002B70000-0x0000000002B71000-memory.dmp

memory/2608-7-0x0000000002B40000-0x0000000002B41000-memory.dmp

memory/2608-8-0x0000000003430000-0x0000000003431000-memory.dmp

memory/2608-19-0x0000000002BB0000-0x0000000002BB1000-memory.dmp

memory/2608-18-0x0000000002BF0000-0x0000000002BF1000-memory.dmp

memory/2608-17-0x0000000002C20000-0x0000000002C21000-memory.dmp

memory/2608-16-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

memory/2608-14-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2608-15-0x0000000002BD0000-0x0000000002BD1000-memory.dmp

memory/2608-13-0x0000000002BA0000-0x0000000002BA1000-memory.dmp

memory/2608-20-0x0000000002C50000-0x0000000002C51000-memory.dmp

memory/2608-12-0x0000000002C10000-0x0000000002C11000-memory.dmp

memory/2608-22-0x0000000002C80000-0x0000000002C81000-memory.dmp

memory/2608-21-0x0000000002C40000-0x0000000002C41000-memory.dmp

memory/2608-11-0x0000000003420000-0x0000000003421000-memory.dmp

memory/2608-10-0x0000000003430000-0x0000000003431000-memory.dmp

memory/2608-9-0x0000000002B10000-0x0000000002B11000-memory.dmp

memory/2608-24-0x0000000002C70000-0x0000000002C71000-memory.dmp

memory/2608-23-0x0000000002C90000-0x0000000002C91000-memory.dmp

memory/2608-25-0x0000000003470000-0x0000000003870000-memory.dmp

memory/2608-26-0x0000000003470000-0x0000000003870000-memory.dmp