Analysis
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max time kernel
185s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 20:00
Static task
static1
Behavioral task
behavioral1
Sample
6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe
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Size
228KB
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MD5
405c3d85822fda505005f503c692be9a
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SHA1
244083d167dbc958422a63480b0e8470bb754701
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SHA256
6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e
-
SHA512
3b818d098521c76ab43c6daf31cff098aba6d3b39820a0226201f499aea48ea79874da31e9fd37cca169dca4a259a5c2675c0c37c91ed334af20bea644518d8b
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SSDEEP
6144:+m/w3PFKs7aFwKWwalhrEqxF6snji81RUinKZHg/MF:+m/qPhAmZIH+C
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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" tnmuem.exe Set value (int) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe -
Executes dropped EXE 1 IoCs
pid Process 568 tnmuem.exe -
Loads dropped DLL 2 IoCs
pid Process 1744 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe 1744 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /w" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /t" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /h" 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /a" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /x" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /v" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /r" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /f" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /e" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /s" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /j" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /b" tnmuem.exe Key created \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\ tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /q" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /h" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /p" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /m" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /d" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /k" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /z" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /l" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /o" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /g" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /y" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /c" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /n" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /i" tnmuem.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\tnmuem = "C:\\Users\\Admin\\tnmuem.exe /u" tnmuem.exe Key created \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1744 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe 568 tnmuem.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1744 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe 568 tnmuem.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1744 wrote to memory of 568 1744 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe 28 PID 1744 wrote to memory of 568 1744 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe 28 PID 1744 wrote to memory of 568 1744 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe 28 PID 1744 wrote to memory of 568 1744 6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe"C:\Users\Admin\AppData\Local\Temp\6c894f3c2397870fdbef69a3956c5fd52dc8655be5b78fa128cee62ee3cb136e.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1744 -
C:\Users\Admin\tnmuem.exe"C:\Users\Admin\tnmuem.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:568
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
228KB
MD5f368be6e5d10e85851e7e05e51beb4ff
SHA15f9c2d508d33a35eed3694fcbec0fcc0bd352730
SHA2569da574a505fb1aa77955e3840dfad5a69ea2912e88fe8f2a0ec1d737ad1fa68d
SHA512f1c081e35239923807cccb17c8a6097b0d18a4ed96a3c674b6d4a03ac077264b632f4db12c6b08af6ed8c34fd8026cb51789cf6d5668c980ddbaec1b163a1d27
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Filesize
228KB
MD5f368be6e5d10e85851e7e05e51beb4ff
SHA15f9c2d508d33a35eed3694fcbec0fcc0bd352730
SHA2569da574a505fb1aa77955e3840dfad5a69ea2912e88fe8f2a0ec1d737ad1fa68d
SHA512f1c081e35239923807cccb17c8a6097b0d18a4ed96a3c674b6d4a03ac077264b632f4db12c6b08af6ed8c34fd8026cb51789cf6d5668c980ddbaec1b163a1d27
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Filesize
228KB
MD5f368be6e5d10e85851e7e05e51beb4ff
SHA15f9c2d508d33a35eed3694fcbec0fcc0bd352730
SHA2569da574a505fb1aa77955e3840dfad5a69ea2912e88fe8f2a0ec1d737ad1fa68d
SHA512f1c081e35239923807cccb17c8a6097b0d18a4ed96a3c674b6d4a03ac077264b632f4db12c6b08af6ed8c34fd8026cb51789cf6d5668c980ddbaec1b163a1d27
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Filesize
228KB
MD5f368be6e5d10e85851e7e05e51beb4ff
SHA15f9c2d508d33a35eed3694fcbec0fcc0bd352730
SHA2569da574a505fb1aa77955e3840dfad5a69ea2912e88fe8f2a0ec1d737ad1fa68d
SHA512f1c081e35239923807cccb17c8a6097b0d18a4ed96a3c674b6d4a03ac077264b632f4db12c6b08af6ed8c34fd8026cb51789cf6d5668c980ddbaec1b163a1d27