Resubmissions
28/03/2024, 19:58
240328-yp6h2afh52 1026/03/2024, 19:31
240326-x8k6rsac82 1026/03/2024, 19:29
240326-x7nv9sdb8v 326/03/2024, 19:26
240326-x5nsgsab94 10Analysis
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max time kernel
1799s -
max time network
1179s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
28/03/2024, 19:58
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe
Resource
win11-20240221-en
windows11-21h2-x64
7 signatures
1800 seconds
General
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Target
40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe
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Size
172KB
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MD5
d5d67479100e986a12e93f9be917bd9c
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SHA1
33fad2e93fffeee3c2b358e57d44b632cbfc8e20
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SHA256
40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465
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SHA512
aaebd28f8c8222ebe8b9080135fa1ee33729abc2787ea5d80cd877e0b8a7f0c1da60469658d8492a0a2567ffed3f15ae94969c91942554488f58d5ef35f88853
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SSDEEP
3072:jbx0J+a0UAVTj2XAwqr6HFjuoF+N7bZD16iYIQusGGTkLGFMMalHSXvhSkXWnU2X:jbNa0U+j2Qh69uoF+N7bZD16iYIQusGN
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe Set value (int) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" rdcaf.exe -
Executes dropped EXE 1 IoCs
pid Process 3992 rdcaf.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /m" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /g" 40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /z" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /o" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /t" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /k" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /g" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /i" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /h" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /f" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /x" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /n" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /r" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /a" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /d" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /v" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /j" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /s" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /y" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /q" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /w" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /c" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /u" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /b" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /l" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /p" rdcaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\rdcaf = "C:\\Users\\Admin\\rdcaf.exe /e" rdcaf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4616 40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe 4616 40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe 3992 rdcaf.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4616 40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe 3992 rdcaf.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4616 wrote to memory of 3992 4616 40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe 76 PID 4616 wrote to memory of 3992 4616 40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe 76 PID 4616 wrote to memory of 3992 4616 40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe 76
Processes
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C:\Users\Admin\AppData\Local\Temp\40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe"C:\Users\Admin\AppData\Local\Temp\40a30e39dfce70f5bba7b73dfe0bb97aa6a01b61ba9a3b20913159e077d5e465.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4616 -
C:\Users\Admin\rdcaf.exe"C:\Users\Admin\rdcaf.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3992
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
172KB
MD5f0eaaa21a1bfa1e99a41a2daf7b5e63f
SHA14dd2c2d6ab3e6aed363adeea42e91e6d388efcdf
SHA2561374cf7d6d04a1fb3a58f505aa3cb9ed2d7a9a203767153311e852a7e850d412
SHA5121cceab22250fa54818f48faf40d67eef96b96415b7cc0070f787eee38cdcdd4d9b8d42fa73e6295fc275ba59d8ada56c5776e3039164da0935e0ac86f0f2dd1d