Analysis
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max time kernel
152s -
max time network
59s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
06/11/2022, 15:14
Static task
static1
Behavioral task
behavioral1
Sample
1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe
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Size
272KB
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MD5
04b6409db6534eed700e2a3030d67e40
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SHA1
6243c67279de78b2da11a27b428bdbed0acec389
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SHA256
1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85
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SHA512
244b043ac0de6da3d69ec930075f48cb395c3c45aa5136212c07fec0ca7be302fa0b1371edcd11e25b699f77afb8df2a55aa3f09970d4844ee6622808f048814
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SSDEEP
3072:64D9gmss0FvbVJznCRcz/hVFA9MSs/PLLj+Qm4U3YwgTeA3e8:fKvbfznH7O9G/PLLxU3YwgT
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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" puuti.exe -
Executes dropped EXE 1 IoCs
pid Process 1868 puuti.exe -
Loads dropped DLL 2 IoCs
pid Process 364 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe 364 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /o" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /t" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /z" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /b" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /c" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /q" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /x" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /p" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /g" puuti.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /f" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /w" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /i" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /n" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /a" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /v" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /l" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /s" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /r" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /d" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /y" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /j" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /k" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /w" 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /u" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /m" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /h" puuti.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\puuti = "C:\\Users\\Admin\\puuti.exe /e" puuti.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 364 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe 1868 puuti.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 364 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe 1868 puuti.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 364 wrote to memory of 1868 364 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe 26 PID 364 wrote to memory of 1868 364 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe 26 PID 364 wrote to memory of 1868 364 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe 26 PID 364 wrote to memory of 1868 364 1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.exe"C:\Users\Admin\AppData\Local\Temp\1f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85.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:364 -
C:\Users\Admin\puuti.exe"C:\Users\Admin\puuti.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:1868
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
272KB
MD504b6409db6534eed700e2a3030d67e40
SHA16243c67279de78b2da11a27b428bdbed0acec389
SHA2561f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85
SHA512244b043ac0de6da3d69ec930075f48cb395c3c45aa5136212c07fec0ca7be302fa0b1371edcd11e25b699f77afb8df2a55aa3f09970d4844ee6622808f048814
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Filesize
272KB
MD504b6409db6534eed700e2a3030d67e40
SHA16243c67279de78b2da11a27b428bdbed0acec389
SHA2561f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85
SHA512244b043ac0de6da3d69ec930075f48cb395c3c45aa5136212c07fec0ca7be302fa0b1371edcd11e25b699f77afb8df2a55aa3f09970d4844ee6622808f048814
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Filesize
272KB
MD504b6409db6534eed700e2a3030d67e40
SHA16243c67279de78b2da11a27b428bdbed0acec389
SHA2561f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85
SHA512244b043ac0de6da3d69ec930075f48cb395c3c45aa5136212c07fec0ca7be302fa0b1371edcd11e25b699f77afb8df2a55aa3f09970d4844ee6622808f048814
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Filesize
272KB
MD504b6409db6534eed700e2a3030d67e40
SHA16243c67279de78b2da11a27b428bdbed0acec389
SHA2561f5b2e4a494d23c1625222a4596d4947baef246c87b0aca2e87b76935e2eba85
SHA512244b043ac0de6da3d69ec930075f48cb395c3c45aa5136212c07fec0ca7be302fa0b1371edcd11e25b699f77afb8df2a55aa3f09970d4844ee6622808f048814