Analysis
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max time kernel
151s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
12-10-2022 14:57
Static task
static1
Behavioral task
behavioral1
Sample
c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe
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Size
204KB
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MD5
769874effe38d3976a0a3b8f3fe858d0
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SHA1
396d5b98e5f27ad271bc53d35a3c20406ea621d1
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SHA256
c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011
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SHA512
cdd671620b10e7b1d2bbe3d9dc7ac4c0beb3224389c04dc21d78873f62ad5d470c15577bdeac63a77d3e8f2f3aae69b3d2b2a8ca9702eef76944c5aefdde78e7
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SSDEEP
3072:tVeWCGNpDxU+mzihKh8wpzDqulR3X9sDpLg6ZGKIXeYnilDC:tVe47EV82llbs1g6+Xbik
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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" pmkal.exe -
Executes dropped EXE 1 IoCs
pid Process 3636 pmkal.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /Z" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /Y" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /O" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /K" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /i" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /U" pmkal.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /L" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /A" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /q" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /g" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /M" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /z" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /P" c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /h" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /c" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /r" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /y" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /N" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /D" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /m" pmkal.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /S" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /e" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /o" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /W" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /f" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /v" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /V" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /C" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /H" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /X" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /w" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /k" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /I" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /j" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /a" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /n" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /u" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /J" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /B" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /b" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /x" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /Q" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /T" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /t" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /d" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /R" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /G" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /F" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /l" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /p" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /s" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /P" pmkal.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pmkal = "C:\\Users\\Admin\\pmkal.exe /E" pmkal.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 1728 c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe 1728 c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe 3636 pmkal.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1728 c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe 3636 pmkal.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1728 wrote to memory of 3636 1728 c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe 81 PID 1728 wrote to memory of 3636 1728 c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe 81 PID 1728 wrote to memory of 3636 1728 c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe"C:\Users\Admin\AppData\Local\Temp\c4cc37ba3c423ff7029a3fad5ed3de43724cb1ccea50b2c0bd8c55626068b011.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Users\Admin\pmkal.exe"C:\Users\Admin\pmkal.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:3636
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
204KB
MD5f9eb00f52c8262a2e8e45684c941b951
SHA16f260729de200acbc80ca6e84329e9985d437a7f
SHA256baad19480d1c3cc6ebddb5be7cd3bc0251cc8cf21119f2f0b58434dac108d05d
SHA5123b6a3dbe479b7b89249756dfe992114cd918a6757b5eb416b26556b673a354e8c7d43f11a0e06849f220d2ebe14a4e5705797c79f8eb6d29833a8abc135ec3aa
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Filesize
204KB
MD5f9eb00f52c8262a2e8e45684c941b951
SHA16f260729de200acbc80ca6e84329e9985d437a7f
SHA256baad19480d1c3cc6ebddb5be7cd3bc0251cc8cf21119f2f0b58434dac108d05d
SHA5123b6a3dbe479b7b89249756dfe992114cd918a6757b5eb416b26556b673a354e8c7d43f11a0e06849f220d2ebe14a4e5705797c79f8eb6d29833a8abc135ec3aa