Malware Analysis Report

2024-12-07 10:43

Sample ID 241113-xd2v2axenn
Target 5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe
SHA256 5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3
Tags
discovery 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

5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3

Threat Level: Shows suspicious behavior

The file 5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery persistence

Deletes itself

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 18:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 18:45

Reported

2024-11-13 18:47

Platform

win7-20240903-en

Max time kernel

119s

Max time network

117s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe

"C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/812-0-0x0000000000400000-0x0000000000403000-memory.dmp

memory/812-3-0x0000000000220000-0x0000000000223000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 b21d72536eb283891eec91b291a1f55c
SHA1 bccf0c0e4fd068767b91ec43d72974dc15b0d89c
SHA256 a3ad21a53542929e4ca9cb61a99f2f4bff96db67603fd64025ee5ef3680843cb
SHA512 055e96f81500f9615bc94a56c6305406b82394da6f77ed674b9ee384c8006e8a754835229faf0a55ac4a30352dc9e8d91b9949240a58b2e26987820bb88522b3

memory/2676-9-0x0000000000400000-0x0000000000403000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 18:45

Reported

2024-11-13 18:47

Platform

win10v2004-20241007-en

Max time kernel

120s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\microsofthelp.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.exe

"C:\Users\Admin\AppData\Local\Temp\5e1ca32db24c875cdbf2b62d4024590c122dc3d1b5fa22e5d0124d1e5d49c9f3.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 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/1476-0-0x0000000000400000-0x0000000000403000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 b21d72536eb283891eec91b291a1f55c
SHA1 bccf0c0e4fd068767b91ec43d72974dc15b0d89c
SHA256 a3ad21a53542929e4ca9cb61a99f2f4bff96db67603fd64025ee5ef3680843cb
SHA512 055e96f81500f9615bc94a56c6305406b82394da6f77ed674b9ee384c8006e8a754835229faf0a55ac4a30352dc9e8d91b9949240a58b2e26987820bb88522b3

memory/1476-3-0x0000000000400000-0x0000000000403000-memory.dmp

memory/4056-6-0x0000000000400000-0x0000000000403000-memory.dmp