Analysis
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max time kernel
151s -
max time network
161s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
07/11/2022, 16:26
Static task
static1
Behavioral task
behavioral1
Sample
99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe
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Size
296KB
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MD5
0a406b3934a8dc66d083a7f9a3812a41
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SHA1
232c4cbdb5f95b15a610d5a3d4264cea456595a8
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SHA256
99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df
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SHA512
988b01759db5af0511eb53abe342eda23cb14c3a30a60ed3c6d8a7a767fd7b110c3a0da77668a53d0dbea2a8b897659af892aa7524adb4987eaed5c8c8fe2d22
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SSDEEP
6144:4zMExFRkhqb7IT4pO6JK/fObT/bGiWtBcMf1YUQiCgfAJDq2ijxLzOwp:G5xFRL7IT4pO6JK/fObT/bGiWt/YUQiJ
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" 99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" frmoox.exe -
Executes dropped EXE 1 IoCs
pid Process 2524 frmoox.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 99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.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\frmoox = "C:\\Users\\Admin\\frmoox.exe /m" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /G" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /f" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /H" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /Y" 99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /d" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /B" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /O" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /b" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /R" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /T" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /Z" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /q" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /A" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /t" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /u" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /i" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /D" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /V" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /F" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /Y" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /g" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /h" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /I" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /o" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /p" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /x" frmoox.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /N" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /l" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /C" frmoox.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /c" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /J" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /Q" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /S" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /v" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /j" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /n" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /a" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /X" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /z" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /y" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /P" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /M" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /W" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /s" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /U" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /k" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /L" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /K" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /w" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /r" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /e" frmoox.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frmoox = "C:\\Users\\Admin\\frmoox.exe /E" frmoox.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 4816 99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe 4816 99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe 2524 frmoox.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4816 99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe 2524 frmoox.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4816 wrote to memory of 2524 4816 99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe 81 PID 4816 wrote to memory of 2524 4816 99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe 81 PID 4816 wrote to memory of 2524 4816 99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.exe"C:\Users\Admin\AppData\Local\Temp\99c16ee0d74db6e1ea85aa2cf130e72c8ce1d113c5678aeebd3fea75332c38df.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:4816 -
C:\Users\Admin\frmoox.exe"C:\Users\Admin\frmoox.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:2524
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
296KB
MD5feccbc33280bc0c4e8724a6bb71c0955
SHA1b41bf4d6a70fea753bceb7022ce357a296cdb035
SHA25638c1d27bf72000bb56dcce4043b4193ce48c076f7ab71dcc01dde56dd70887d1
SHA512d136b38a90a28fecabf6a509e6d2653ccbe179677e1dc361857cd1ea8cb55eeade3a9aa0e7ce27bb0ff53b7c48426e15b382d5df302265b572003d5685f7bfd6
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Filesize
296KB
MD5feccbc33280bc0c4e8724a6bb71c0955
SHA1b41bf4d6a70fea753bceb7022ce357a296cdb035
SHA25638c1d27bf72000bb56dcce4043b4193ce48c076f7ab71dcc01dde56dd70887d1
SHA512d136b38a90a28fecabf6a509e6d2653ccbe179677e1dc361857cd1ea8cb55eeade3a9aa0e7ce27bb0ff53b7c48426e15b382d5df302265b572003d5685f7bfd6