Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
19/09/2024, 03:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-19_6a8845cbcda9ed712441d3c73bea80c5_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-19_6a8845cbcda9ed712441d3c73bea80c5_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-19_6a8845cbcda9ed712441d3c73bea80c5_cryptolocker.exe
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Size
23KB
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MD5
6a8845cbcda9ed712441d3c73bea80c5
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SHA1
2682e5a755e43778e5ae56ace5b482efb12a9d1f
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SHA256
57c691112ae72482620541b633db7adade0916b59600110b83fe0fa30885991f
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SHA512
9ebac93800b4f56daecfaac4e915fe658872dc1f0755979d1b14b1fd5c6364060e570d44654c6f617499e253753bd84e32ee8243ff0fb2e81f7b7c1d68bee590
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SSDEEP
384:QBOkkLPcM4JIM39ZR8Z87XHjeKtFDcRYpTtOOtEvwDpjqIGRD:QB19M4JIhZMHSKtBcROtOOtEvwDpjg
Malware Config
Signatures
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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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation 2024-09-19_6a8845cbcda9ed712441d3c73bea80c5_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3232 asih.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-09-19_6a8845cbcda9ed712441d3c73bea80c5_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1540 wrote to memory of 3232 1540 2024-09-19_6a8845cbcda9ed712441d3c73bea80c5_cryptolocker.exe 82 PID 1540 wrote to memory of 3232 1540 2024-09-19_6a8845cbcda9ed712441d3c73bea80c5_cryptolocker.exe 82 PID 1540 wrote to memory of 3232 1540 2024-09-19_6a8845cbcda9ed712441d3c73bea80c5_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-19_6a8845cbcda9ed712441d3c73bea80c5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-19_6a8845cbcda9ed712441d3c73bea80c5_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1540 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3232
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
23KB
MD529d8d7d307f2f96d78ace485985a2b5a
SHA1d31c86d2c5d94efb206ec4f0fe2c27ebcc1e8a36
SHA25667159296c09ae308739a8796069b9aac78d380fdab64b99d9ea4fe12b04b1e15
SHA512653d4ed33aea1a81716fa00d63831c7c47655ae4d5d9c207789e1d0285765fe04aefce625e711a40c34785621c0974cb090c6254ecd5276daa5f4579520e41f7