Malware Analysis Report

2025-08-05 14:35

Sample ID 250702-x38d4sgj7t
Target b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc
SHA256 b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc
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

b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc

Threat Level: Shows suspicious behavior

The file b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc 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

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Modifies data under HKEY_USERS

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

win10v2004-20250610-en

Max time kernel

143s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\Syswow64\a72a9441 N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\a72a9441 C:\Users\Admin\AppData\Local\Temp\b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\Syswow64\a72a9441 N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\Syswow64\a72a9441 N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\Syswow64\a72a9441 N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\Syswow64\a72a9441 N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\61ff38 C:\Windows\Syswow64\a72a9441 N/A
File opened for modification C:\Windows\6880b0 C:\Users\Admin\AppData\Local\Temp\b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc.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\b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Syswow64\a72a9441 N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" C:\Windows\Syswow64\a72a9441 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" C:\Windows\Syswow64\a72a9441 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" C:\Windows\Syswow64\a72a9441 N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\Syswow64\a72a9441 N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\Syswow64\a72a9441 N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\Syswow64\a72a9441 N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ C:\Windows\Syswow64\a72a9441 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" C:\Windows\Syswow64\a72a9441 N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc.exe N/A
Token: SeTcbPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Syswow64\a72a9441 N/A
Token: SeTcbPrivilege N/A C:\Windows\Syswow64\a72a9441 N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc.exe

"C:\Users\Admin\AppData\Local\Temp\b8c38ff0920eb09907893c891eb456eb23285ad483ed9db00344f03b083788fc.exe"

C:\Windows\Syswow64\a72a9441

C:\Windows\Syswow64\a72a9441

Network

Country Destination Domain Proto
CN 114.114.114.114:53 down.nugong.asia udp
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
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
CN 223.5.5.5:53 dns.alidns.com udp
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/6104-0-0x0000000000E80000-0x0000000000EE3000-memory.dmp

C:\Windows\SysWOW64\a72a9441

MD5 981cb3ae6ad9ae7d254a9399d5463a5f
SHA1 03b042e13b7c0cc1573f8034243f8de37f0bf845
SHA256 212bf2e275809574f93c0cae2d24e27b67f284981f503fe68504ff55137f0e6a
SHA512 2c3ea7155c46f62b623f58ac12fbdca83ff110013df93c742596d2b5ff073fcd0059f1dd9099a525983fbfaf47e44739368c4a57f5b9b58d0194321445f13d51

memory/5724-4-0x0000000000C10000-0x0000000000C73000-memory.dmp