Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
03/08/2026, 08:50
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe
Resource
win11ltsc2024-20260709-en
windows11-ltsc_2024-x64
8 signatures
150 seconds
General
- Target a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe
- Size 395KB
- Sample260803-krv87ascnd
- SHA256 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d
- MD5 c6bfe0e810f67733f00d968d02da266c
- SHA1 d9926fcbed79abcc466c971f533ec2b6d6f6e676
- SHA512 23571d8706b8439437e8e102ea0862965ce215aaa99f497de2a053d4d7221eee9254dd976044d122bc6c58c840ad9a9ca4aec24c73e7273d2cbacd57f5ade027
- SSDEEP 6144:VcbcTgav1cdCTuoPbgwmOLJvKRILSFvdFDcEOkCybEaQRXr9HNdvOa:VCSvO2x9mONvKRILSFnOkx2LIa
- TLSH T1F3846D2AB6A0D076C4B79579C4A247BAFBB1742137204ACFA390475A1F637E2BD3530D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4308 51f404fa - Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 57 114.114.114.114 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe Destination IP 58 223.5.5.5 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe Destination IP 5 114.114.114.114 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe Destination IP 6 223.5.5.5 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 51f404fa File created C:\Windows\SysWOW64\51f404fa a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 51f404fa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 51f404fa - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\49c128 51f404fa File opened for modification C:\Windows\3ccfc0 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 51f404fa - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 51f404fa Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 51f404fa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 51f404fa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 51f404fa Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 51f404fa Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 51f404fa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 51f404fa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 51f404fa Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 51f404fa - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4308 51f404fa 4308 51f404fa 4308 51f404fa 4308 51f404fa 4308 51f404fa 4308 51f404fa 4308 51f404fa 4308 51f404fa 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe Token: SeTcbPrivilege 3552 a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe Token: SeDebugPrivilege 4308 51f404fa Token: SeTcbPrivilege 4308 51f404fa
Processes
-
C:\Users\Admin\AppData\Local\Temp\a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe"C:\Users\Admin\AppData\Local\Temp\a2f33c0c582cbbbcc2dc5478fbce81fbe7a9b508eda195156bf3ecd794da980d.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3552
-
C:\Windows\Syswow64\51f404faC:\Windows\Syswow64\51f404fa1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4308
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\51f404fa
- Size 395KB
- SHA256 c5b0bc5592e68a58e936fd75e952284c432b74163e75179aa51f3ef6b078b03e
- MD5 8839636c798d0f4cab76f86b6a7da926
- SHA1 a5789c618adea6a8e77ef82f572d7c63c720dd6c
- SHA512 e1626c54fc2973fb76c59035bac34c0b50a0cf91bb867c19b564efb2db6ec8b9984a8787aee0c69097e763edd2a8a34ddc012f1da4942a423cc75826c1b3300b
- SSDEEP 6144:fcbcTgav1cdCTuoPbgwmOLJvKRILSFvdFDcEOkCybEaQRXr9HNdvOa:fCSvO2x9mONvKRILSFnOkx2LIa
- TLSH T191846D2AB6A0D076C4B79579C4A247BAFBB1742137204ACFA390475A1F637E2BD3530D
- MD5 SHA1 SHA512 SSDEEP TLSH