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Analysis
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max time kernel
151s -
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
02/12/2022, 00:45
Static task
static1
Behavioral task
behavioral1
Sample
b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe
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Size
132KB
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MD5
76f5395af0f774bab318e573c4e293e4
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SHA1
b47742669004661ed5dc559ef68cb19fcc978a74
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SHA256
b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375
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SHA512
01edb57dab8680e16aa123568724d325f16d4d7d4b7ecee3919c561a1ceece9a9f07bed69a63abdf7d9083586e71426f6dd05364a810820545ffac01c96b130a
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SSDEEP
1536:uym4Q/T5/H6rM2qEbBkIvI4DyQDIws/HmmYbRdfuL0wo7JaS1:vQ/TpH63qEbBkn4e2s/HmlTfdwQL
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" b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" biiivew.exe -
Executes dropped EXE 1 IoCs
pid Process 4372 biiivew.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 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /w" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /G" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /l" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /f" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /A" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /X" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /z" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /Y" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /F" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /E" b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /b" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /R" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /K" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /a" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /T" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /q" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /h" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /k" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /P" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /g" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /m" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /V" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /t" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /D" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /c" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /Z" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /y" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /S" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /u" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /N" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /E" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /r" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /n" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /C" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /U" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /j" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /e" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /o" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /M" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /v" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /O" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /d" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /i" biiivew.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /x" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /H" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /L" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /J" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /Q" biiivew.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /s" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /B" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /p" biiivew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biiivew = "C:\\Users\\Admin\\biiivew.exe /I" biiivew.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 2220 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 2220 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe 4372 biiivew.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2220 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 4372 biiivew.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2220 wrote to memory of 4372 2220 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 79 PID 2220 wrote to memory of 4372 2220 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 79 PID 2220 wrote to memory of 4372 2220 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe"C:\Users\Admin\AppData\Local\Temp\b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.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:2220 -
C:\Users\Admin\biiivew.exe"C:\Users\Admin\biiivew.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:4372
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
132KB
MD56dce20af264b9187a59b44d919b75f6e
SHA12511577a14a02be3a93d6eecf4574837518bfda0
SHA25694b46729282c3e3633b4bf5b405a5d8ca5901c4d8405fe9f936fc6c8092eb07e
SHA5128873d3a9c8b964b82ab8720dbcfffaf5a302b083f7476e7665b6775004eeda35556575866ba249f98dd6daf74b1d44e9d8d855309b25884dc27b43e3eedf02bf
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Filesize
132KB
MD56dce20af264b9187a59b44d919b75f6e
SHA12511577a14a02be3a93d6eecf4574837518bfda0
SHA25694b46729282c3e3633b4bf5b405a5d8ca5901c4d8405fe9f936fc6c8092eb07e
SHA5128873d3a9c8b964b82ab8720dbcfffaf5a302b083f7476e7665b6775004eeda35556575866ba249f98dd6daf74b1d44e9d8d855309b25884dc27b43e3eedf02bf