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Analysis
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max time kernel
152s -
max time network
154s -
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, 00:34
Static task
static1
Behavioral task
behavioral1
Sample
9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe
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Size
212KB
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MD5
b0e3cf85e5e56dc86a659f74fc25f6a4
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SHA1
317c88237d0ca5c8629a9880ca00258c1d7e9f36
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SHA256
9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80
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SHA512
ed1e0066979676ea8f47a4d86c9bc7001476ded4c5bb956aba73e694e74aafca0be2ec1b72943ee5ea1bfe0edf97a52f38cda430a37b32f3c4e8ad257d7d16eb
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SSDEEP
3072:KvCh2UjpES8Fd3MiaDN/bG0sCOL5pNk+ZxybSAx:SfFd3MiK/SxCOL5pi
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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" czbuep.exe -
Executes dropped EXE 1 IoCs
pid Process 4628 czbuep.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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /y" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /j" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /p" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /v" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /r" czbuep.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /x" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /h" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /a" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /s" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /n" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /w" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /d" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /i" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /z" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /u" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /m" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /l" 9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /b" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /t" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /o" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /l" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /q" czbuep.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /k" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /f" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /e" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /c" czbuep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\czbuep = "C:\\Users\\Admin\\czbuep.exe /g" czbuep.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 2204 9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe 2204 9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe 4628 czbuep.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2204 9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe 4628 czbuep.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2204 wrote to memory of 4628 2204 9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe 79 PID 2204 wrote to memory of 4628 2204 9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe 79 PID 2204 wrote to memory of 4628 2204 9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.exe"C:\Users\Admin\AppData\Local\Temp\9af4cc58dbe00825ea0a723cfd142f1e46eb89b169bf88b38f61e5792e349d80.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:2204 -
C:\Users\Admin\czbuep.exe"C:\Users\Admin\czbuep.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:4628
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
212KB
MD5cdbf923e1c820ba632c80d279cfe97ed
SHA1b4b66e24d9891b640fa64cd23fb49a6d5c1bf29b
SHA2568e90b29f2a2c8aed9656479354d208951cd9c4f5acdd66349add99c3020dbb60
SHA51292a30e36afe0ef766ecb8071dab380f0c4e4be25768453b91452f3be3750f8a5501e8667f1227526db4cd9ff4c8f09db99326b61652ab5ed9b2f9b930d2eac85
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Filesize
212KB
MD5cdbf923e1c820ba632c80d279cfe97ed
SHA1b4b66e24d9891b640fa64cd23fb49a6d5c1bf29b
SHA2568e90b29f2a2c8aed9656479354d208951cd9c4f5acdd66349add99c3020dbb60
SHA51292a30e36afe0ef766ecb8071dab380f0c4e4be25768453b91452f3be3750f8a5501e8667f1227526db4cd9ff4c8f09db99326b61652ab5ed9b2f9b930d2eac85