Analysis
- max time kernel
148s - max time network
131s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/10/2026, 16:17
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
jaffacakes118_HEUR.Backdoor.MSIL.DarkKomet.gen.exe
Resource
win10v2004-20260911-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
jaffacakes118_HEUR.Backdoor.MSIL.DarkKomet.gen.exe
Resource
win11ltsc2024-20260911-en
9 signatures
150 seconds
General
- Target jaffacakes118_HEUR.Backdoor.MSIL.DarkKomet.gen.exe
- Size 122KB
- Sample261009-trc72scc97
- SHA256 ffcab750867f649a0017390bae0bed8788bcb97b6284f90bbf16ba3bec661e49
- MD5 2e1f4cbdfee9611fb6ae1db345d37928
- SHA1 21895b7cc092139ed2c7704e546d1dd1620e3889
- SHA512 bccffad66944c59629650fdd62c3c67094a73ca139c26c4a3abce2bb7e1ed3de77d385300dc21496f4033d12fbe33ebf2d9eb89c93a9f810250abd5ff4baa6f9
- SSDEEP 3072:7jYUZYgJ1ikyekx1CuBSyKu0piFHRgD4JKAKjwIDu7hZXW:fYUnMHevuBSyfuhZNjwWuG
- TLSH T1B3C3E04687F5ABA0CBB641743423EB206334FE2D92C6FB1F66A5754D39337E4021A49B
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4904 file1.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-53044966-3830981193-2402648431-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update Service = "C:\\Windows\\System32\\win32.dll.exe" file1.exe - Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\win32.dll.exe file1.exe File opened for modification C:\Windows\SysWOW64\win32.dll.exe file1.exe -
resource yara_rule behavioral2/files/0x000e00000001c4cf-12.dat upx behavioral2/memory/4904-20-0x0000000000400000-0x0000000000420155-memory.dmp upx behavioral2/memory/4904-21-0x0000000000400000-0x0000000000420155-memory.dmp upx - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 file1.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4904 file1.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3704 wrote to memory of 4904 3704 jaffacakes118_HEUR.Backdoor.MSIL.DarkKomet.gen.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Backdoor.MSIL.DarkKomet.gen.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Backdoor.MSIL.DarkKomet.gen.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3704 -
C:\Users\Admin\AppData\Local\Temp\file1.exeC:\Users\Admin\AppData\Local\Temp\\file1.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:4904
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\file1.exe
- Size 42KB
- SHA256 53b6eb4d04fb3da3eaa024ee5a21a3929a8901a165fcfe251eee2441009f8bf6
- MD5 5f285a7e7079eea3c140b3c2cb36eeeb
- SHA1 ddad4256d8f414b70f8db3efe64ecca109ed4b73
- SHA512 7fb9b17bb70e3738af55e3f99a4364834a96719effc5f1e47e390f981f5272528dfebfff269316d134d428ff62f99a1c43b22bf6f588035e0adf070c5847197e
- SSDEEP 768:p4Gdxy4fgd/DSWTk3TZgWMlchBxqCOq6K5+GCSboDPciJmQs5xlSe6:FTgNXT2gWMuhB0CP68aInbF6
- TLSH T17013F12D9E654A5EF725843EE5636033A853B0E1104C4B5B04187BAE1BEF3A1BF532C3
- MD5 SHA1 SHA512 SSDEEP TLSH