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Analysis
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max time kernel
149s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
20/10/2022, 01:30
Static task
static1
Behavioral task
behavioral1
Sample
efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe
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Size
304KB
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MD5
5bf424eb69e1250740aa00c78b67f6f0
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SHA1
ebcd94c8ce90b75cb9555a618b0c9b542a6a9be7
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SHA256
efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd
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SHA512
58017d0fd4679a75d6706e6ff438a6677a7e5521a610f60737d070f7775d01155bf9b46e4eda32c923367e4485fda03d6329f9ed56577b2ef86cf21de5c02b8b
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SSDEEP
3072:YaPMzZRFjFBbVJsnCRcC3xo8ozYH/LSsB4pAnNnfwo7A3n+YQCASCPepFq:YaPkZLfsnHQIz9AnNnourCAfPepF
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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" pauco.exe -
Executes dropped EXE 1 IoCs
pid Process 2008 pauco.exe -
Loads dropped DLL 2 IoCs
pid Process 1048 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 1048 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /v" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /m" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /z" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /l" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /j" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /w" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /d" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /f" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /p" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /x" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /c" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /s" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /u" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /q" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /k" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /e" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /y" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /i" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /i" efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /n" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /g" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /h" pauco.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /a" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /r" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /o" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /t" pauco.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauco = "C:\\Users\\Admin\\pauco.exe /b" pauco.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 1048 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe 2008 pauco.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1048 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 2008 pauco.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1048 wrote to memory of 2008 1048 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 27 PID 1048 wrote to memory of 2008 1048 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 27 PID 1048 wrote to memory of 2008 1048 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 27 PID 1048 wrote to memory of 2008 1048 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe"C:\Users\Admin\AppData\Local\Temp\efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.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:1048 -
C:\Users\Admin\pauco.exe"C:\Users\Admin\pauco.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:2008
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
304KB
MD55bf424eb69e1250740aa00c78b67f6f0
SHA1ebcd94c8ce90b75cb9555a618b0c9b542a6a9be7
SHA256efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd
SHA51258017d0fd4679a75d6706e6ff438a6677a7e5521a610f60737d070f7775d01155bf9b46e4eda32c923367e4485fda03d6329f9ed56577b2ef86cf21de5c02b8b
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Filesize
304KB
MD55bf424eb69e1250740aa00c78b67f6f0
SHA1ebcd94c8ce90b75cb9555a618b0c9b542a6a9be7
SHA256efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd
SHA51258017d0fd4679a75d6706e6ff438a6677a7e5521a610f60737d070f7775d01155bf9b46e4eda32c923367e4485fda03d6329f9ed56577b2ef86cf21de5c02b8b
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Filesize
304KB
MD55bf424eb69e1250740aa00c78b67f6f0
SHA1ebcd94c8ce90b75cb9555a618b0c9b542a6a9be7
SHA256efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd
SHA51258017d0fd4679a75d6706e6ff438a6677a7e5521a610f60737d070f7775d01155bf9b46e4eda32c923367e4485fda03d6329f9ed56577b2ef86cf21de5c02b8b
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Filesize
304KB
MD55bf424eb69e1250740aa00c78b67f6f0
SHA1ebcd94c8ce90b75cb9555a618b0c9b542a6a9be7
SHA256efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd
SHA51258017d0fd4679a75d6706e6ff438a6677a7e5521a610f60737d070f7775d01155bf9b46e4eda32c923367e4485fda03d6329f9ed56577b2ef86cf21de5c02b8b