Analysis
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max time kernel
202s -
max time network
208s -
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, 21:38
Static task
static1
Behavioral task
behavioral1
Sample
46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe
Resource
win10v2004-20220812-en
General
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Target
46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe
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Size
66KB
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MD5
212ed115e3880dd24329894e9829547b
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SHA1
4292ff2b2ca05e4ede32d7bf0c8e2497767a75f1
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SHA256
46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf
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SHA512
9eb27989a2ff53a756cfde2b39e18c14a49837867e6a5bf89bb0ac8822908c9501de49b8a04a334c4a9e35f9a5bba9567d316821782d37edae9f9a54bcf61104
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SSDEEP
1536:HsrTImGCxTil5vaKtfUHl1jeeeeeeMeeeeeeWLU:HsnT9R
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\6438640620394286720310355\winsvc.exe = "C:\\Users\\Admin\\6438640620394286720310355\\winsvc.exe:*:Enabled:Microsoft Windows Service" 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe -
Executes dropped EXE 1 IoCs
pid Process 4668 winsvc.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 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Service = "C:\\Users\\Admin\\6438640620394286720310355\\winsvc.exe" 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2496 wrote to memory of 4668 2496 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe 79 PID 2496 wrote to memory of 4668 2496 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe 79 PID 2496 wrote to memory of 4668 2496 46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe"C:\Users\Admin\AppData\Local\Temp\46a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf.exe"1⤵
- Modifies firewall policy service
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Users\Admin\6438640620394286720310355\winsvc.exe"C:\Users\Admin\6438640620394286720310355\winsvc.exe"2⤵
- Executes dropped EXE
PID:4668
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
66KB
MD5212ed115e3880dd24329894e9829547b
SHA14292ff2b2ca05e4ede32d7bf0c8e2497767a75f1
SHA25646a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf
SHA5129eb27989a2ff53a756cfde2b39e18c14a49837867e6a5bf89bb0ac8822908c9501de49b8a04a334c4a9e35f9a5bba9567d316821782d37edae9f9a54bcf61104
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Filesize
66KB
MD5212ed115e3880dd24329894e9829547b
SHA14292ff2b2ca05e4ede32d7bf0c8e2497767a75f1
SHA25646a851ae68e39c0418126f16e30ff40e5a39375ef0acec8c9730287dfed440cf
SHA5129eb27989a2ff53a756cfde2b39e18c14a49837867e6a5bf89bb0ac8822908c9501de49b8a04a334c4a9e35f9a5bba9567d316821782d37edae9f9a54bcf61104