Analysis
- max time kernel
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
12/10/2026, 23:51
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe
Resource
win10v2004-20260911-en
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe
Resource
win11ltsc2024-20260911-en
4 signatures
150 seconds
General
- Target jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe
- Size 91KB
- Sample261012-3wfcmsfe95
- SHA256 748d12726765dd96df5b7cf71bfcaeec890f7a9d4f5505c387dcc70940949e8c
- MD5 2e4672179ef545b475c151a819b26276
- SHA1 91153e439fdc89fc51d288eee050fe4cdabd93b0
- SHA512 9b62ecfe1afbf04630d1bbe22483463e3fbbd0c47e7d0a6918371500d73c4cdedb6d1c0a7f0aee6ed5f9144bd2fd04a13237f44be750ad7a7086f6ba922362d0
- SSDEEP 1536:/gOXMHpY94aeHn1lRMDgw/Y5pl1RZ/nEkh8OTKNn:/cYWaeHn1lRMDlUHPxhTKNn
- TLSH T14A933A22E249B852FACB4A31279692F65731B43C38014B06779583FD15346C7BDAAE3F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
5/10
Malware Config
Signatures
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 6124 set thread context of 3116 6124 jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe 89 - System Location Discovery: System Language Discovery 1 TTPs 1 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 jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 6124 jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe 6124 jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 6124 wrote to memory of 3116 6124 jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe 89 PID 6124 wrote to memory of 3116 6124 jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe 89 PID 6124 wrote to memory of 3116 6124 jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe 89 PID 6124 wrote to memory of 3116 6124 jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:6124 -
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Backdoor.Win32.Bifrose.fxv.exe"2⤵PID:3116
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