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Analysis
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max time kernel
154s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19/09/2022, 10:22
Static task
static1
Behavioral task
behavioral1
Sample
52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe
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Size
192KB
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MD5
3321aaf1db2179aba80c5fc2f8c945ff
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SHA1
8cea41e9bac00d0c552ca13e9c7b1bf12ade241e
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SHA256
52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89
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SHA512
b25f49b353902094c0a881765b7651fce5b0e2d3d4e60a4c6e3235964c9d723a22fc98a4845e84b44f0e95aefc173897d58a830fb729c438793a3a9e371cc824
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SSDEEP
3072:8Ge2fdLbEamxv2YhFEryJVVtOTI4BkcKmPcfNVw8:3dLAaqvFHVVtO7KmkfNVL
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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" rvguec.exe -
Executes dropped EXE 1 IoCs
pid Process 1064 rvguec.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /z" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /w" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /g" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /j" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /s" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /y" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /e" rvguec.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /c" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /p" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /q" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /d" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /u" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /m" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /v" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /n" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /o" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /r" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /a" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /x" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /i" 52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /t" rvguec.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /h" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /k" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /i" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /f" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /b" rvguec.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rvguec = "C:\\Users\\Admin\\rvguec.exe /l" rvguec.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 4712 52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe 4712 52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe 1064 rvguec.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4712 52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe 1064 rvguec.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4712 wrote to memory of 1064 4712 52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe 82 PID 4712 wrote to memory of 1064 4712 52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe 82 PID 4712 wrote to memory of 1064 4712 52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe"C:\Users\Admin\AppData\Local\Temp\52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.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:4712 -
C:\Users\Admin\rvguec.exe"C:\Users\Admin\rvguec.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:1064
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
192KB
MD5380103838edbded937557448c4afc08b
SHA10294d9d893fbbb42eef352e87a290f21c3cd3221
SHA25641a1d7444735f0d87a334f4aa1df165cbdd773264a580086586fba69369ce0cf
SHA512358c8bd3011577bb0a46b032bdc89bf4235d6941acfdb8d4aedf095809f0080e644c6444932796ce052ff09724efd37b133d310a398adf5bcab4f7812cf1f78a
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Filesize
192KB
MD5380103838edbded937557448c4afc08b
SHA10294d9d893fbbb42eef352e87a290f21c3cd3221
SHA25641a1d7444735f0d87a334f4aa1df165cbdd773264a580086586fba69369ce0cf
SHA512358c8bd3011577bb0a46b032bdc89bf4235d6941acfdb8d4aedf095809f0080e644c6444932796ce052ff09724efd37b133d310a398adf5bcab4f7812cf1f78a