Analysis
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max time kernel
188s -
max time network
189s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
20/10/2022, 10:18
Static task
static1
Behavioral task
behavioral1
Sample
8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe
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Size
224KB
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MD5
7aea1a14d1b2eda0858ba58484dddd10
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SHA1
e3712cbae9d5d855bb879952990226df01da9658
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SHA256
8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a
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SHA512
ceca0d6ab74b92c31603fa2b4fba214bed73d573947f84c5d6ba30a4c260f69200fc34ebde34d03bf574726ce6c281a7228937f64e93fead1b326c80b9d86d76
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SSDEEP
6144:tUqO83FrSU0bIaX/m7bfTWaJPGeyb7qh7wNAZBbM3f1jG:tUqO8RSU0bIaX/m7bfTWaV1wWZBbM3fg
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" 8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" siiti.exe -
Executes dropped EXE 1 IoCs
pid Process 2576 siiti.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 8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /d" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /z" 8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /F" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /l" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /P" siiti.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /S" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /W" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /V" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /Q" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /O" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /v" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /A" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /L" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /o" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /j" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /i" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /Z" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /e" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /y" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /g" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /Y" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /s" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /H" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /c" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /C" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /z" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /E" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /k" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /N" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /n" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /U" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /f" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /B" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /I" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /m" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /M" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /a" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /D" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /w" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /p" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /h" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /X" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /x" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /b" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /T" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /t" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /G" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /J" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /q" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /u" siiti.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /r" siiti.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siiti = "C:\\Users\\Admin\\siiti.exe /R" siiti.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 392 8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe 392 8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe 2576 siiti.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 392 8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe 2576 siiti.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 392 wrote to memory of 2576 392 8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe 82 PID 392 wrote to memory of 2576 392 8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe 82 PID 392 wrote to memory of 2576 392 8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.exe"C:\Users\Admin\AppData\Local\Temp\8a6f2d7f933d0b69d4c1e2c0048d3e3465f34349c427bcc9ade813661bd9d22a.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:392 -
C:\Users\Admin\siiti.exe"C:\Users\Admin\siiti.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:2576
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
224KB
MD52d254a9fc4f40bc939abad5e59c8364b
SHA1784ab9253a61dfc70d58d7db61a2c12ec27af910
SHA2563437fc5d6d9066866b3939fcd7230c19338e71f645d574c3e8a6c293e73d47a5
SHA512fb2efc419ff898642383e8ad0ab9b3891d25294eb9343676879659423e7736224c635e6f68817c1bd373461e70b051913d43ea4f024ff17f1952b1c3ff50f16d
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Filesize
224KB
MD52d254a9fc4f40bc939abad5e59c8364b
SHA1784ab9253a61dfc70d58d7db61a2c12ec27af910
SHA2563437fc5d6d9066866b3939fcd7230c19338e71f645d574c3e8a6c293e73d47a5
SHA512fb2efc419ff898642383e8ad0ab9b3891d25294eb9343676879659423e7736224c635e6f68817c1bd373461e70b051913d43ea4f024ff17f1952b1c3ff50f16d