Malware Analysis Report

2025-03-14 22:52

Sample ID 240406-1ke7dsbg61
Target 632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b
SHA256 632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b
Tags
persistence
score
7/10

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
7/10

SHA256

632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b

Threat Level: Shows suspicious behavior

The file 632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Executes dropped EXE

Deletes itself

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 21:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 21:42

Reported

2024-04-06 21:44

Platform

win7-20240221-en

Max time kernel

149s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b.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-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b.exe N/A
File created C:\Windows\HidePlugin.dll C:\Windows\microsofthelp.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b.exe

"C:\Users\Admin\AppData\Local\Temp\632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/112-0-0x0000000000400000-0x000000000040D000-memory.dmp

memory/2036-9-0x0000000000400000-0x000000000040D000-memory.dmp

memory/112-7-0x00000000002A0000-0x00000000002AD000-memory.dmp

memory/112-6-0x0000000000400000-0x000000000040D000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 97bcb74added632dd8bab0c9054acfb4
SHA1 563444c17bd5257f2659f17eaf73f6a9e84c29c7
SHA256 23edf1c911b190d1a4b31154c9cc0843073ce3149c47d4ce6cdc1066819426dc
SHA512 f179f36e300e099a5bbcc76443fdd3a33408e143647c5d8f7fabbf527e518f5910ecd1c915928d81b61dcc16f61d52e52f64e274866ea64d9f3d6e410981c137

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 21:42

Reported

2024-04-06 21:44

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b.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-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b.exe N/A
File created C:\Windows\HidePlugin.dll C:\Windows\microsofthelp.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b.exe

"C:\Users\Admin\AppData\Local\Temp\632f3be52177e4af973da008764aafea7e2f574e03f7bfbe819e6d71e4d1fb8b.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 99.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 52.111.229.43:443 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 33.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 14.179.89.13.in-addr.arpa udp

Files

memory/3264-0-0x0000000000400000-0x000000000040D000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 97bcb74added632dd8bab0c9054acfb4
SHA1 563444c17bd5257f2659f17eaf73f6a9e84c29c7
SHA256 23edf1c911b190d1a4b31154c9cc0843073ce3149c47d4ce6cdc1066819426dc
SHA512 f179f36e300e099a5bbcc76443fdd3a33408e143647c5d8f7fabbf527e518f5910ecd1c915928d81b61dcc16f61d52e52f64e274866ea64d9f3d6e410981c137

memory/3264-4-0x0000000000400000-0x000000000040D000-memory.dmp