Analysis
- max time kernel
149s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
15/08/2026, 22:25
Behavioral task
behavioral1
Sample
bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe
- Size 761KB
- Sample260815-2cd5ssvbmg
- SHA256 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad
- MD5 90a6460038fb214eaba2951a95723198
- SHA1 fb32012e19a13b3df1a01b37d3d1fdecc65a0dc0
- SHA512 492319c6b236fc6e94d609f310e667c852ca08612afe3d1736d91aa9870e5ed2502b68bbd4cf5a49d91f69b9c5162efce81a2cd1d9fa2f740136e9d64b161090
- SSDEEP 12288:LSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:+vO2xJKRw2kOkxSkW298B
- TLSH T16DF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 812 1c2e0d44 - 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 3 114.114.114.114 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe Destination IP 4 223.5.5.5 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe Destination IP 30 114.114.114.114 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe Destination IP 31 223.5.5.5 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe - Drops file in System32 directory 11 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 1c2e0d44 File created C:\Windows\SysWOW64\1c2e0d44 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 1c2e0d44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 1c2e0d44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 1c2e0d44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 1c2e0d44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 1c2e0d44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 1c2e0d44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 1c2e0d44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 1c2e0d44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 1c2e0d44 -
resource yara_rule behavioral1/memory/1600-0-0x00000000003C0000-0x000000000044C000-memory.dmp upx behavioral1/files/0x000b000000024267-2.dat upx behavioral1/memory/812-3-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx behavioral1/memory/1600-10-0x00000000003C0000-0x000000000044C000-memory.dmp upx behavioral1/memory/812-11-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx behavioral1/memory/812-18-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\1b6480 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe File opened for modification C:\Windows\de6d8 1c2e0d44 - 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 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1c2e0d44 - 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\Content\CachePrefix 1c2e0d44 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 1c2e0d44 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 1c2e0d44 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 1c2e0d44 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 1c2e0d44 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 1c2e0d44 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 1c2e0d44 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 1c2e0d44 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 1c2e0d44 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 812 1c2e0d44 812 1c2e0d44 812 1c2e0d44 812 1c2e0d44 812 1c2e0d44 812 1c2e0d44 812 1c2e0d44 812 1c2e0d44 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe Token: SeTcbPrivilege 1600 bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe Token: SeDebugPrivilege 812 1c2e0d44 Token: SeTcbPrivilege 812 1c2e0d44
Processes
-
C:\Users\Admin\AppData\Local\Temp\bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.exe"C:\Users\Admin\AppData\Local\Temp\bfc8809d5ed27fc96c794f904c808fbb9022ecfbd53e41b25041ffc71ba954ad.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:1600
-
C:\Windows\Syswow64\1c2e0d44C:\Windows\Syswow64\1c2e0d441⤵
- 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:812
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\1c2e0d44
- Size 761KB
- SHA256 37b260071ae2f6252ac8a34deb2fbd3dfe67b6bce2ffce55c2bae5508c3fffa3
- MD5 8d8b7ab1897d5cac78c682a8770ce1aa
- SHA1 493711282b5af32727e3a12bede14ed42c3e9679
- SHA512 19673c8b1645fe702bfcabd5b3ec75bd6ef9b22fd1569e55583512518aad2b3a941f6861c47b444ee856d6752ecd46e2b094a1ca7856715cb539611c1369d236
- SSDEEP 12288:dSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:8vO2xJKRw2kOkxSkW298B
- TLSH T15BF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH