Malware Analysis Report

2025-08-05 12:50

Sample ID 240509-anmgrsfh8z
Target 459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20
SHA256 459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20
Tags
bootkit persistence
score
6/10

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
6/10

SHA256

459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20

Threat Level: Shows suspicious behavior

The file 459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Unsigned PE

Program crash

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-09 00:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 00:21

Reported

2024-05-09 00:24

Platform

win10v2004-20240508-en

Max time kernel

142s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 C:\Users\Admin\AppData\Local\Temp\459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20.exe

"C:\Users\Admin\AppData\Local\Temp\459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20.exe"

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 --field-trial-handle=4036,i,17096020621006928097,15544233752327415349,262144 --variations-seed-version --mojo-platform-channel-handle=1316 /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4224 -ip 4224

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4224 -s 768

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/4224-0-0x0000000000680000-0x0000000000681000-memory.dmp

memory/4224-1-0x00000000027C0000-0x0000000002840000-memory.dmp

memory/4224-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/4224-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4224-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/4224-7-0x0000000000400000-0x000000000046F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 00:21

Reported

2024-05-09 00:24

Platform

win11-20240419-en

Max time kernel

146s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 C:\Users\Admin\AppData\Local\Temp\459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20.exe

"C:\Users\Admin\AppData\Local\Temp\459a7ffe3b29de16ec6cb8451d89867a094aefbff57408f976800519f8008f20.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/1960-0-0x00000000007A0000-0x00000000007A1000-memory.dmp

memory/1960-1-0x0000000002590000-0x0000000002610000-memory.dmp

memory/1960-2-0x0000000000400000-0x000000000046F000-memory.dmp

memory/1960-3-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1960-4-0x0000000000400000-0x00000000004EE000-memory.dmp

memory/1960-5-0x00000000007A0000-0x00000000007A1000-memory.dmp

memory/1960-8-0x0000000000400000-0x000000000046F000-memory.dmp