Analysis
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max time kernel
151s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07/12/2022, 03:03
Static task
static1
Behavioral task
behavioral1
Sample
8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe
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Size
352KB
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MD5
8ba23768456262615da6f6e9126f7833
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SHA1
f43d0f81d6202a00eba47a7076d84c6537b78ec0
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SHA256
8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741
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SHA512
a487ced0f99bc6cd062744d103b09c393ecb40180b41361d64fe4bf96a934d6b3256827c159fc35a20ec8d6eda49c2a650bb1c1af30ceaa7bcbe6624a95f29af
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SSDEEP
6144:hh5kHeNK1Zc/jWhvd0yTNxjT0M1zWyjYdP:X5kSKQeV0C30IzWv
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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" vczaep.exe -
Executes dropped EXE 1 IoCs
pid Process 1736 vczaep.exe -
Loads dropped DLL 2 IoCs
pid Process 1608 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe 1608 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /z" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /h" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /s" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /m" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /r" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /p" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /i" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /j" vczaep.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /u" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /g" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /w" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /c" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /l" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /b" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /d" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /o" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /e" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /n" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /a" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /x" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /k" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /v" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /y" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /q" vczaep.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /t" vczaep.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /i" 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\vczaep = "C:\\Users\\Admin\\vczaep.exe /f" vczaep.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 1608 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe 1736 vczaep.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1608 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe 1736 vczaep.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1608 wrote to memory of 1736 1608 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe 26 PID 1608 wrote to memory of 1736 1608 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe 26 PID 1608 wrote to memory of 1736 1608 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe 26 PID 1608 wrote to memory of 1736 1608 8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.exe"C:\Users\Admin\AppData\Local\Temp\8859743f26f268a6669ca00fabec708392dd223bf473680b95fa285d2ee83741.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:1608 -
C:\Users\Admin\vczaep.exe"C:\Users\Admin\vczaep.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:1736
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
352KB
MD5650582725313bbba7d69900058f75775
SHA195c7e4c79677f04d7016fb66cdc52167cf702e29
SHA2565f1cf7acbbc83a4c584b1d4faa5770d8789982742b8043e368acef8463e26762
SHA512fa26701a02a619d54c933ea1d52e0c3e82880eda6dafd0181e943ceab52898c882ba5efa6892c9f756ba8dc8626ebedcd071b8b3d4dd0ffd19ade814f933770f
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Filesize
352KB
MD5650582725313bbba7d69900058f75775
SHA195c7e4c79677f04d7016fb66cdc52167cf702e29
SHA2565f1cf7acbbc83a4c584b1d4faa5770d8789982742b8043e368acef8463e26762
SHA512fa26701a02a619d54c933ea1d52e0c3e82880eda6dafd0181e943ceab52898c882ba5efa6892c9f756ba8dc8626ebedcd071b8b3d4dd0ffd19ade814f933770f
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Filesize
352KB
MD5650582725313bbba7d69900058f75775
SHA195c7e4c79677f04d7016fb66cdc52167cf702e29
SHA2565f1cf7acbbc83a4c584b1d4faa5770d8789982742b8043e368acef8463e26762
SHA512fa26701a02a619d54c933ea1d52e0c3e82880eda6dafd0181e943ceab52898c882ba5efa6892c9f756ba8dc8626ebedcd071b8b3d4dd0ffd19ade814f933770f
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Filesize
352KB
MD5650582725313bbba7d69900058f75775
SHA195c7e4c79677f04d7016fb66cdc52167cf702e29
SHA2565f1cf7acbbc83a4c584b1d4faa5770d8789982742b8043e368acef8463e26762
SHA512fa26701a02a619d54c933ea1d52e0c3e82880eda6dafd0181e943ceab52898c882ba5efa6892c9f756ba8dc8626ebedcd071b8b3d4dd0ffd19ade814f933770f