Malware Analysis Report

2025-08-05 14:35

Sample ID 250702-x3yvnszyaw
Target ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3
SHA256 ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3

Threat Level: Shows suspicious behavior

The file ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3 was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery

Unexpected DNS network traffic destination

Executes dropped EXE

Drops file in System32 directory

Drops file in Windows directory

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

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 19:25

Platform

win10v2004-20250502-en

Max time kernel

143s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\Syswow64\6583b080 N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\Syswow64\6583b080 N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\Syswow64\6583b080 N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\Syswow64\6583b080 N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\Syswow64\6583b080 N/A
File created C:\Windows\SysWOW64\6583b080 C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\5bf878 C:\Windows\Syswow64\6583b080 N/A
File opened for modification C:\Windows\1b4170 C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.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\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Syswow64\6583b080 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\6583b080 N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\Syswow64\6583b080 N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\Syswow64\6583b080 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" C:\Windows\Syswow64\6583b080 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" C:\Windows\Syswow64\6583b080 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" C:\Windows\Syswow64\6583b080 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" C:\Windows\Syswow64\6583b080 N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ C:\Windows\Syswow64\6583b080 N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe N/A
Token: SeTcbPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Syswow64\6583b080 N/A
Token: SeTcbPrivilege N/A C:\Windows\Syswow64\6583b080 N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe

"C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe"

C:\Windows\Syswow64\6583b080

C:\Windows\Syswow64\6583b080

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 223.6.6.6:443 dns.alidns.com tcp
CN 223.5.5.5:443 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 down.nugong.asia udp
CN 223.6.6.6:443 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 223.6.6.6:80 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 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:80 dns.alidns.com tcp

Files

memory/1592-0-0x00000000002D0000-0x0000000000333000-memory.dmp

C:\Windows\SysWOW64\6583b080

MD5 969150422e092531a3de5e0d9d48201d
SHA1 e6d521830945d664ef1da18ad3080086a75d3aed
SHA256 438473c5208d041a76a970c5c66f79756c5189b7c2ce107c19de54c1303a32d7
SHA512 2903e3ab42441aaf1f6b789ce6811ad2703565a3cd852224f1de2a209266b539d744186b9473d7503c86cc99fb1e5460488f696b20f6f089e042a7d4be524579

memory/5372-4-0x0000000000F50000-0x0000000000FB3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-07-02 19:23

Reported

2025-07-02 19:25

Platform

win11-20250619-en

Max time kernel

143s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\Syswow64\8e1a3f27 N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\8e1a3f27 C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\Syswow64\8e1a3f27 N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\Syswow64\8e1a3f27 N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\Syswow64\8e1a3f27 N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\Syswow64\8e1a3f27 N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\201e28 C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe N/A
File opened for modification C:\Windows\1017d8 C:\Windows\Syswow64\8e1a3f27 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\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Syswow64\8e1a3f27 N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ C:\Windows\Syswow64\8e1a3f27 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" C:\Windows\Syswow64\8e1a3f27 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" C:\Windows\Syswow64\8e1a3f27 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" C:\Windows\Syswow64\8e1a3f27 N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" C:\Windows\Syswow64\8e1a3f27 N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\Syswow64\8e1a3f27 N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\Syswow64\8e1a3f27 N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\Syswow64\8e1a3f27 N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe N/A
Token: SeTcbPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Syswow64\8e1a3f27 N/A
Token: SeTcbPrivilege N/A C:\Windows\Syswow64\8e1a3f27 N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe

"C:\Users\Admin\AppData\Local\Temp\ff03c5c578e232694f32967dbf8248db48ba6970a41780950fb494e8eb3767d3.exe"

C:\Windows\Syswow64\8e1a3f27

C:\Windows\Syswow64\8e1a3f27

Network

Country Destination Domain Proto
CN 114.114.114.114:53 down.nugong.asia udp
CN 223.5.5.5:53 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
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
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/1876-0-0x0000000000800000-0x0000000000863000-memory.dmp

C:\Windows\SysWOW64\8e1a3f27

MD5 9ca0aeb312813ee4ee37168445f90910
SHA1 c18ab17108c270c1074c6df911d9c9ff36e38d89
SHA256 30b92107b457caff1bd23d2aa2d79ba02a338d486a62fd9564286d75806f923e
SHA512 f174de831853bb1491ae58dea8972677c80b203921357833e26417b58cedd517436b63646d9ed496f89394b59fbe04eeadc25d2b0a2e7bc15eda61508148504e

memory/940-4-0x0000000000050000-0x00000000000B3000-memory.dmp