Analysis
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max time kernel
152s -
max time network
178s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19/10/2022, 14:05
Static task
static1
Behavioral task
behavioral1
Sample
fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe
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Size
164KB
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MD5
91f06a77c96ad30865f5600fe3b68e3f
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SHA1
aa188eabcbe2495b42731973e7da7a7927eb24a7
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SHA256
fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df
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SHA512
e62268179ea290db967decd85497e5872f46f3658adb1504feb2220b466f74a5b7c0bf3911cc04376b7ab6a8d24807206c12836407f79c381f4b0d8dbfa8dfbb
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SSDEEP
3072:TsWcISl/N6veiCi36JRbs4jwKWuRr6TQY3UBTzFJ0T72ar:TsWcIM/N6mJDjwZuesY34TzFJ0T722
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" fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" pauisiy.exe -
Executes dropped EXE 1 IoCs
pid Process 428 pauisiy.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 fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /v" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /r" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /x" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /y" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /o" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /a" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /y" fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /s" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /q" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /j" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /w" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /c" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /e" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /k" pauisiy.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /t" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /f" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /i" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /l" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /z" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /b" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /m" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /n" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /g" pauisiy.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /u" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /d" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /p" pauisiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pauisiy = "C:\\Users\\Admin\\pauisiy.exe /h" pauisiy.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 4180 fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe 4180 fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe 428 pauisiy.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4180 fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe 428 pauisiy.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4180 wrote to memory of 428 4180 fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe 81 PID 4180 wrote to memory of 428 4180 fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe 81 PID 4180 wrote to memory of 428 4180 fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.exe"C:\Users\Admin\AppData\Local\Temp\fd281cf4f21e5c1f275a4de56ee474ced74f9e51ccf78761dfdbbbeee1f5d7df.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:4180 -
C:\Users\Admin\pauisiy.exe"C:\Users\Admin\pauisiy.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:428
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
164KB
MD529ee12aa0606cd1a07e5414107e166ee
SHA12b3e6d27d40c20a873d76d333c72c046ffa68a67
SHA256934e075cc5521053c79d13ea1efb1011ea0ebe8dce188adbb8310a35ee6244a8
SHA512e6771e2fa65c9f1942fc64ef97ee2db1593cc643ee100b9ac73e929949db038b8becbf45d3957331a28729ded0338b606388cdf6de71b61d129addea9303def9
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Filesize
164KB
MD529ee12aa0606cd1a07e5414107e166ee
SHA12b3e6d27d40c20a873d76d333c72c046ffa68a67
SHA256934e075cc5521053c79d13ea1efb1011ea0ebe8dce188adbb8310a35ee6244a8
SHA512e6771e2fa65c9f1942fc64ef97ee2db1593cc643ee100b9ac73e929949db038b8becbf45d3957331a28729ded0338b606388cdf6de71b61d129addea9303def9