Analysis
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max time kernel
194s -
max time network
213s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05/12/2022, 09:19
Static task
static1
Behavioral task
behavioral1
Sample
cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe
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Size
92KB
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MD5
a08399c97686c035dae05a5b380e2bb1
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SHA1
a30068795d6970cdfe685377f6eccedd0318d57c
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SHA256
cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1
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SHA512
bb8996f6f6ca162f017cd0efdf093abd777cb0af644506773a1bd0bd8bd2e159ff98b581d7bb866b1cad798a18a4a24ce888486462c0ffed792eafcbbfb1093a
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SSDEEP
1536:SrghDsZFrXQ0LpuSTksMcxa2/w/MyOKvxRnmwXvWsl7zP3+uv+8sraiL8VPQ2N4M:ZhiVXdLpuSTkiro/MyOKvxRnmwXvWslm
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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" vnzeb.exe Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe -
Executes dropped EXE 1 IoCs
pid Process 3852 vnzeb.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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /l" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /j" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /q" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /m" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /w" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /f" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /r" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /e" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /g" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /s" vnzeb.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /y" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /i" vnzeb.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /p" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /c" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /d" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /a" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /v" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /n" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /u" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /t" cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /z" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /x" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /h" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /t" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /o" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /b" vnzeb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vnzeb = "C:\\Users\\Admin\\vnzeb.exe /k" vnzeb.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 4748 cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe 4748 cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe 3852 vnzeb.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4748 cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe 3852 vnzeb.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4748 wrote to memory of 3852 4748 cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe 83 PID 4748 wrote to memory of 3852 4748 cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe 83 PID 4748 wrote to memory of 3852 4748 cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.exe"C:\Users\Admin\AppData\Local\Temp\cf88259455121c143dae6c7663dd0fb072061115bb263bddef1216c6b3eb50a1.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:4748 -
C:\Users\Admin\vnzeb.exe"C:\Users\Admin\vnzeb.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:3852
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
92KB
MD51034b20984abc2e1cd9cf3bc5512ea61
SHA1b058412f05f4ebee66b60669d2630fb5e028d166
SHA256a2973c4334ee2eb658a527c9189a43253aa8cb28f2c455aee2b2fb98a0cd4aa8
SHA512bf746db58e6b5fcb2892c320b7ae27aa05cd745c764af7147dad7493c5fbf711b96ad6d07e0bc50fed30b88fc4adc4fff26322d69345c46db273c592d5a7508e
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Filesize
92KB
MD51034b20984abc2e1cd9cf3bc5512ea61
SHA1b058412f05f4ebee66b60669d2630fb5e028d166
SHA256a2973c4334ee2eb658a527c9189a43253aa8cb28f2c455aee2b2fb98a0cd4aa8
SHA512bf746db58e6b5fcb2892c320b7ae27aa05cd745c764af7147dad7493c5fbf711b96ad6d07e0bc50fed30b88fc4adc4fff26322d69345c46db273c592d5a7508e