Malware Analysis Report

2025-08-05 14:36

Sample ID 250702-x374cagj6z
Target b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a
SHA256 b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a
Tags
discovery
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V16

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a

Threat Level: Shows suspicious behavior

The file b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery

Executes dropped EXE

Unexpected DNS network traffic destination

Drops file in System32 directory

Drops file in Windows directory

System Location Discovery: System Language Discovery

Unsigned PE

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-07-02 19:23

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-07-02 19:23

Reported

2025-07-02 19:26

Platform

win10v2004-20250619-en

Max time kernel

143s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\Syswow64\47343e2c N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\47343e2c C:\Users\Admin\AppData\Local\Temp\b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\Syswow64\47343e2c N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\Syswow64\47343e2c N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\Syswow64\47343e2c N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\Syswow64\47343e2c N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\1f3a40 C:\Windows\Syswow64\47343e2c N/A
File opened for modification C:\Windows\d02f0 C:\Users\Admin\AppData\Local\Temp\b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a.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\b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Syswow64\47343e2c N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\Syswow64\47343e2c N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\Syswow64\47343e2c N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\Syswow64\47343e2c N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" C:\Windows\Syswow64\47343e2c N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" C:\Windows\Syswow64\47343e2c N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ C:\Windows\Syswow64\47343e2c N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" C:\Windows\Syswow64\47343e2c N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" C:\Windows\Syswow64\47343e2c N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a.exe N/A
Token: SeTcbPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Syswow64\47343e2c N/A
Token: SeTcbPrivilege N/A C:\Windows\Syswow64\47343e2c N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a.exe

"C:\Users\Admin\AppData\Local\Temp\b76a89a34a750475510e133a2d80e50312259241795a54a73c0ef6605e70bc2a.exe"

C:\Windows\Syswow64\47343e2c

C:\Windows\Syswow64\47343e2c

Network

Country Destination Domain Proto
CN 114.114.114.114:53 down.nugong.asia udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
CN 223.5.5.5:53 down.nugong.asia udp
US 8.8.8.8:53 down.nugong.asia udp
US 8.8.8.8:53 dns.alidns.com udp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.6.6.6:443 dns.alidns.com tcp
CN 114.114.114.114:53 down.nugong.asia udp
CN 223.5.5.5:53 dns.alidns.com udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 down.nugong.asia udp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:80 dns.alidns.com tcp
CN 223.6.6.6:443 dns.alidns.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.179.227:80 c.pki.goog tcp
CN 223.5.5.5:80 dns.alidns.com tcp
CN 223.6.6.6:80 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:80 dns.alidns.com tcp

Files

memory/760-0-0x0000000000E40000-0x0000000000EA3000-memory.dmp

C:\Windows\SysWOW64\47343e2c

MD5 cf67215e8d740450c3eeedcea346fe8b
SHA1 a9416b2c4007bc10e259f16353da645db3019694
SHA256 391f8e8cead23fc44564969d9b856cd5b922db63339b2dc9c6c989a1588054c3
SHA512 a593683c7cb21d755a049e8b4be609adfde735242be486b3d1475d6688c8cf542bd3546dac5e99fbae7abd9fb7a947ac0ec0e88b5735f3a24a23f46617e271eb

memory/1824-4-0x0000000000050000-0x00000000000B3000-memory.dmp