Analysis
- max time kernel
150s - 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
15/08/2026, 19:25
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe
Resource
win11ltsc2024-20260709-en
windows11-ltsc_2024-x64
8 signatures
150 seconds
General
- Target 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe
- Size 1.1MB
- Sample260815-x5evkssemb
- SHA256 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf
- MD5 1605bc967255de959a9f72624c616d57
- SHA1 73cdd0c0e3328d6f4faa4d80df950a8ddc1e8b6a
- SHA512 7a3d03aed5bb419ce19211e8b230c16f8bac77853a1c41349aa41e2feb9554ddb354de3f501068b460669fe8fafd5c51decc370b25abec2b1f69cb369a224a11
- SSDEEP 24576:JvO2xJKRI2dOkx2LFAAX1oOYSY82e5QPJJOgufWWsYo:JHHKO2FQd1oOU82lPJ6Po
- TLSH T14F359D12F7A1C072C8A7427448B6C36EA675BC152B214BCBB7C03B5E5E723D1AE36359
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4708 8fbdf9dc - 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 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe Destination IP 2 223.5.5.5 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe Destination IP 16 114.114.114.114 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe Destination IP 17 223.5.5.5 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.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\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 8fbdf9dc File created C:\Windows\SysWOW64\8fbdf9dc 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8fbdf9dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8fbdf9dc - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\45fcf0 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe File opened for modification C:\Windows\509a48 8fbdf9dc - 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 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8fbdf9dc - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 8fbdf9dc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 8fbdf9dc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 8fbdf9dc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 8fbdf9dc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 8fbdf9dc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 8fbdf9dc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 8fbdf9dc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 8fbdf9dc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 8fbdf9dc - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4708 8fbdf9dc 4708 8fbdf9dc 4708 8fbdf9dc 4708 8fbdf9dc 4708 8fbdf9dc 4708 8fbdf9dc 4708 8fbdf9dc 4708 8fbdf9dc 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe Token: SeTcbPrivilege 4088 66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe Token: SeDebugPrivilege 4708 8fbdf9dc Token: SeTcbPrivilege 4708 8fbdf9dc
Processes
-
C:\Users\Admin\AppData\Local\Temp\66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.exe"C:\Users\Admin\AppData\Local\Temp\66fb9bb0ec9bc72a3df21307bda0fb1dce1af3db0fd27fafe5e101f64521bfbf.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:4088
-
C:\Windows\Syswow64\8fbdf9dcC:\Windows\Syswow64\8fbdf9dc1⤵
- 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:4708
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\8fbdf9dc
- Size 1.1MB
- SHA256 24abbffed8bad4e18026c9109675d4e2f3fc1ea6e22d758335dcfe34f61b5092
- MD5 dbf0107a5e827212e850ac5a93044b67
- SHA1 4af06b4f2c3dfe06e9b67095dc08e335bf627d49
- SHA512 38284f153be8e5d5284cb8f84502e7503e9a8dde1ba4fd7afca312d5257796e9e2df1217ceb89257bb892ae57296ddb73c425191f86433547c1066a9bb44103f
- SSDEEP 24576:DvO2xJKRI2dOkx2LFAAX1oOYSY82e5QPJJOgufWWsYo:DHHKO2FQd1oOU82lPJ6Po
- TLSH T11D359D12F7A1C072C8A7427448B6C36EA675BC152B214BCBB7C03B5E5E723D1AE36359
- MD5 SHA1 SHA512 SSDEEP TLSH