Malware Analysis Report

2025-06-16 07:34

Sample ID 240601-ystnmsde5y
Target b47c3d63292255c1.exe
SHA256 2dc5dca6c8a4c0ead48b6ecec215de0ff00b9f15ad0f8ccbe57df13915cab27d
Tags
score
8/10

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
8/10

SHA256

2dc5dca6c8a4c0ead48b6ecec215de0ff00b9f15ad0f8ccbe57df13915cab27d

Threat Level: Likely malicious

The file b47c3d63292255c1.exe was found to be: Likely malicious.

Malicious Activity Summary


Drops file in Drivers directory

Legitimate hosting services abused for malware hosting/C2

Maps connected drives based on registry

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious behavior: RenamesItself

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-01 20:03

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 20:03

Reported

2024-06-01 20:06

Platform

win7-20240221-en

Max time kernel

120s

Max time network

132s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe"

Signatures

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A
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Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2888 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe C:\Windows\system32\WerFault.exe
PID 2888 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe C:\Windows\system32\WerFault.exe
PID 2888 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe

"C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2888 -s 240

Network

N/A

Files

memory/2888-4-0x00000000772F0000-0x00000000772F2000-memory.dmp

memory/2888-2-0x00000000772F0000-0x00000000772F2000-memory.dmp

memory/2888-0-0x00000000772F0000-0x00000000772F2000-memory.dmp

memory/2888-5-0x0000000077310000-0x0000000077312000-memory.dmp

memory/2888-7-0x0000000077310000-0x0000000077312000-memory.dmp

memory/2888-9-0x0000000077310000-0x0000000077312000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 20:03

Reported

2024-06-01 20:06

Platform

win10v2004-20240226-en

Max time kernel

153s

Max time network

164s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe"

Signatures

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\system32\drivers\etc\hosts C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A
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Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.exe

"C:\Users\Admin\AppData\Local\Temp\b47c3d63292255c1.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 --mojo-platform-channel-handle=4192 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 20.231.121.79:80 tcp
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 raw.githubusercontent.com udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.108.133:443 raw.githubusercontent.com tcp
US 8.8.8.8:53 133.108.199.185.in-addr.arpa udp
N/A 127.0.0.1:49836 tcp
US 8.8.8.8:53 keyauth.win udp
US 8.8.8.8:53 keyauth.win udp
US 104.26.1.5:443 keyauth.win tcp
N/A 127.0.0.1:49842 tcp
US 8.8.8.8:53 5.1.26.104.in-addr.arpa udp
US 8.8.8.8:53 edge.msiserver.lan udp
US 8.8.8.8:53 edge.msiserver.lan udp
US 8.8.8.8:53 edge.msiserver.lan udp
US 8.8.8.8:53 edge.msiserver.lan udp
US 8.8.8.8:53 edge.msiserver.lan udp
US 8.8.8.8:53 107.211.222.173.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 8.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 137.71.105.51.in-addr.arpa udp

Files

memory/1300-0-0x00007FF9F58F0000-0x00007FF9F58F2000-memory.dmp

memory/1300-1-0x00007FF9F5900000-0x00007FF9F5902000-memory.dmp