Malware Analysis Report

2025-08-05 15:54

Sample ID 240529-skx37sab4z
Target 16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91
SHA256 16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91
Tags
upx
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91

Threat Level: Shows suspicious behavior

The file 16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx

ACProtect 1.3x - 1.4x DLL software

Loads dropped DLL

UPX packed file

Drops file in Program Files directory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

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

win7-20240508-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91.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\16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91.exe

"C:\Users\Admin\AppData\Local\Temp\16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91.exe"

Network

N/A

Files

memory/2180-3-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2180-6-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2180-5-0x0000000000B20000-0x0000000000B57000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-29 15:11

Reported

2024-05-29 15:14

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91.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\16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91.exe

"C:\Users\Admin\AppData\Local\Temp\16f5ff3b1846c9d8c52f154f142691377a534ddd71d0faa8f86cff87b20bbe91.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.75:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 75.61.62.23.in-addr.arpa udp
NL 23.62.61.75:443 www.bing.com tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 31.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/1872-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1872-5-0x0000000000840000-0x0000000000877000-memory.dmp

memory/1872-7-0x0000000010000000-0x0000000010030000-memory.dmp