Malware Analysis Report

2025-03-14 22:57

Sample ID 240406-1w1bpsch77
Target 6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a
SHA256 6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a
Tags
persistence
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a

Threat Level: Shows suspicious behavior

The file 6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Deletes itself

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-06 22:00

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 22:00

Reported

2024-04-06 22:03

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a.exe"

Signatures

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a.exe

"C:\Users\Admin\AppData\Local\Temp\6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 26.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 17.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp

Files

memory/3036-0-0x0000000000400000-0x0000000000403000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 f585e34f11905ad01370252cb898b678
SHA1 9a07e829b87fce61c77fb8e97fb89117c88c5deb
SHA256 d1d4959b352ea4b3bc8a87c6384acf7a106db0ef7e98134762c1be15139c7be4
SHA512 96441259372aa4924dc8ba68f7309c2a253f1f296ba99b3eea008ecbbfff25b1d35bccd101c14f6f519cc76e75e41032893bc06f6e3bba2cf5a6d6c3f7311c34

memory/3036-4-0x0000000000400000-0x0000000000403000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 22:00

Reported

2024-04-06 22:03

Platform

win7-20240221-en

Max time kernel

149s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a.exe"

Signatures

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a.exe

"C:\Users\Admin\AppData\Local\Temp\6b6a527de18a8a4c945564efad311521a9f868ae3d16cb9ff86151d17550c02a.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/1692-0-0x0000000000400000-0x0000000000403000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 f585e34f11905ad01370252cb898b678
SHA1 9a07e829b87fce61c77fb8e97fb89117c88c5deb
SHA256 d1d4959b352ea4b3bc8a87c6384acf7a106db0ef7e98134762c1be15139c7be4
SHA512 96441259372aa4924dc8ba68f7309c2a253f1f296ba99b3eea008ecbbfff25b1d35bccd101c14f6f519cc76e75e41032893bc06f6e3bba2cf5a6d6c3f7311c34

memory/1692-3-0x00000000001B0000-0x00000000001B3000-memory.dmp

memory/2172-8-0x0000000000400000-0x0000000000403000-memory.dmp