Malware Analysis Report

2025-08-05 15:54

Sample ID 240529-skzl2aab5t
Target 6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347
SHA256 6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347
Tags
upx persistence
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

6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347

Threat Level: Likely malicious

The file 6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347 was found to be: Likely malicious.

Malicious Activity Summary

upx persistence

Modifies AppInit DLL entries

Loads dropped DLL

UPX packed file

ACProtect 1.3x - 1.4x DLL software

Drops file in Program Files directory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-29 15:11

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-29 15:11

Reported

2024-05-29 15:14

Platform

win7-20240221-en

Max time kernel

119s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347.exe"

Signatures

ACProtect 1.3x - 1.4x DLL software

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

UPX packed file

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Common Files\System\symsrv.dll C:\Users\Admin\AppData\Local\Temp\6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347.exe

"C:\Users\Admin\AppData\Local\Temp\6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347.exe"

Network

N/A

Files

\Program Files\Common Files\System\symsrv.dll

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2964-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2964-5-0x0000000000EE0000-0x0000000000F17000-memory.dmp

memory/2964-7-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-29 15:11

Reported

2024-05-29 15:14

Platform

win10v2004-20240426-en

Max time kernel

93s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347.exe"

Signatures

Modifies AppInit DLL entries

persistence

ACProtect 1.3x - 1.4x DLL software

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

UPX packed file

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Common Files\System\symsrv.dll C:\Users\Admin\AppData\Local\Temp\6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347.exe

"C:\Users\Admin\AppData\Local\Temp\6d667c37f8cab4b96f8f8f10942c253cc5757bfdebb77e2c25db8b5ae4ea5347.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 202.131.50.23.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

C:\Program Files\Common Files\System\symsrv.dll

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/5800-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/5800-5-0x0000000000CE0000-0x0000000000D17000-memory.dmp

memory/5800-7-0x0000000010000000-0x0000000010030000-memory.dmp