Malware Analysis Report

2025-08-05 21:21

Sample ID 240305-epvxraeg38
Target b3bd4994b3221f99fd345f4c2117d219
SHA256 9cd46f06c4282008ba9f65b536490d8688b130424a9af782131261aad18dfecb
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

9cd46f06c4282008ba9f65b536490d8688b130424a9af782131261aad18dfecb

Threat Level: Shows suspicious behavior

The file b3bd4994b3221f99fd345f4c2117d219 was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2

ASPack v2.12-2.42

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-05 04:07

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 04:07

Reported

2024-03-05 04:10

Platform

win10v2004-20240226-en

Max time kernel

142s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe"

Signatures

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3620 set thread context of 4260 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3620 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 3620 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 3620 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 3620 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 3620 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 3620 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 3620 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 3620 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 3620 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe

"C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe"

C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe

"C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 4260 -ip 4260

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 12

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=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
GB 142.250.187.234:443 tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.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 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.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 8.8.8.8:53 169.117.168.52.in-addr.arpa udp

Files

memory/4260-0-0x0000000013140000-0x0000000013178000-memory.dmp

memory/4260-1-0x0000000013140000-0x0000000013178000-memory.dmp

memory/4260-2-0x0000000013140000-0x0000000013178000-memory.dmp

memory/4260-3-0x0000000013140000-0x0000000013178000-memory.dmp

memory/3620-5-0x0000000011000000-0x0000000011023000-memory.dmp

memory/4260-6-0x0000000011000000-0x0000000011000000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-05 04:07

Reported

2024-03-05 04:10

Platform

win7-20240221-en

Max time kernel

120s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe"

Signatures

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2088 set thread context of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2088 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 2088 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 2088 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 2088 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 2088 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 2088 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 2088 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 2088 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 2088 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe
PID 2088 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe

"C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe"

C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe

"C:\Users\Admin\AppData\Local\Temp\b3bd4994b3221f99fd345f4c2117d219.exe"

Network

N/A

Files

memory/2076-0-0x0000000013140000-0x0000000013178000-memory.dmp

memory/2076-1-0x0000000013140000-0x0000000013178000-memory.dmp

memory/2076-2-0x0000000013140000-0x0000000013178000-memory.dmp

memory/2076-4-0x0000000013140000-0x0000000013178000-memory.dmp

memory/2076-6-0x0000000013140000-0x0000000013178000-memory.dmp

memory/2076-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2076-8-0x0000000013140000-0x0000000013178000-memory.dmp

memory/2076-13-0x0000000011000000-0x0000000011000000-memory.dmp

memory/2088-12-0x0000000011000000-0x0000000011023000-memory.dmp