Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
31/07/2026, 15:12
Behavioral task
behavioral1
Sample
66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe
- Size 560KB
- Sample260731-slbatsvgkf
- SHA256 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86
- MD5 215c1bdeeddcc8b8da9d0a0a46a82203
- SHA1 5b7324a058953beac02995e96f220c59be799cfa
- SHA512 89df31e2da2d47d7b07e3911f1b4e7a11d62567235cc3991427a3ce6c2d8abc8a58b6775cb7d0b1acf094cbd9804937f257bb605f550fb1fdd03db45f57a5e9e
- SSDEEP 6144:j4ZaN1cb90oOTFmIFLq0cvnXhLCqj2EFNirGcEOkCybEaQRuy8K:jrNOb9+sIF+0cvnXhLCqEsOkxHy
- TLSH T128C48D29B6E0C076C4B79578C4A186B6FAB17832372459CFA394075A1F337E2BA3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5952 bf7760c0 - 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 1 114.114.114.114 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe Destination IP 4 223.5.5.5 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe Destination IP 12 114.114.114.114 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe Destination IP 13 223.5.5.5 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C bf7760c0 File created C:\Windows\SysWOW64\bf7760c0 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 bf7760c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 bf7760c0 -
resource yara_rule behavioral2/memory/3720-0-0x00000000008D0000-0x000000000095C000-memory.dmp upx behavioral2/files/0x000600000000697a-2.dat upx behavioral2/memory/5952-3-0x0000000000A30000-0x0000000000ABC000-memory.dmp upx behavioral2/memory/3720-10-0x00000000008D0000-0x000000000095C000-memory.dmp upx behavioral2/memory/5952-11-0x0000000000A30000-0x0000000000ABC000-memory.dmp upx behavioral2/memory/5952-35-0x0000000000A30000-0x0000000000ABC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3fb010 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe File opened for modification C:\Windows\65e680 bf7760c0 - 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 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bf7760c0 - 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\Cookies\CachePrefix = "Cookie:" bf7760c0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" bf7760c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" bf7760c0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix bf7760c0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ bf7760c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" bf7760c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" bf7760c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" bf7760c0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing bf7760c0 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 5952 bf7760c0 5952 bf7760c0 5952 bf7760c0 5952 bf7760c0 5952 bf7760c0 5952 bf7760c0 5952 bf7760c0 5952 bf7760c0 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe Token: SeTcbPrivilege 3720 66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe Token: SeDebugPrivilege 5952 bf7760c0 Token: SeTcbPrivilege 5952 bf7760c0
Processes
-
C:\Users\Admin\AppData\Local\Temp\66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.exe"C:\Users\Admin\AppData\Local\Temp\66a1e7a16fb37a916e8cdf3ed706fc1c726c36fcb919e5053d0913e7db489b86.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:3720
-
C:\Windows\Syswow64\bf7760c0C:\Windows\Syswow64\bf7760c01⤵
- 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:5952
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\bf7760c0
- Size 560KB
- SHA256 abe76f51f0d6953bb66f985f4301c0e029765ce17d047e0d2856cc0c152b8d00
- MD5 f79680b2c31552c061dd4d651fdd6d33
- SHA1 f7224849efcf8d9ad89bad0b99be83153357a6dc
- SHA512 545b000a614b408dcecc61bde1006f2ee06f48c6e94a0b94e9feb88e54e221604431a289f2abd07073395241e2e7e31785b978f9ffa0e863849eda0b4c0c47b5
- SSDEEP 6144:u4ZaN1cb90oOTFmIFLq0cvnXhLCqj2EFNirGcEOkCybEaQRuy8K:urNOb9+sIF+0cvnXhLCqEsOkxHy
- TLSH T13FC48D29B6E0C076C4B79578C4A186B6FAB17832372459CFA394075A1F337E2BA3570D
- MD5 SHA1 SHA512 SSDEEP TLSH