Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
02-10-2024 06:35
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-02_bc56b38f277d7ab969834fe2d37f4281_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-02_bc56b38f277d7ab969834fe2d37f4281_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-10-02_bc56b38f277d7ab969834fe2d37f4281_cryptolocker.exe
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Size
67KB
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MD5
bc56b38f277d7ab969834fe2d37f4281
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SHA1
05f0e6e62815fe34a3f26dc0fbb96d9a19a175a6
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SHA256
cb8a316a7bf8b697745946da0405e02b70ce22eb458acc45eff126c00a976d8d
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SHA512
f8690c47bc07ce07a417a6e57d800104a751e5faa5c4d6da3ec7e7724fd3f6422d3314418f5b2862b0e16e171b6ff26484d03eb5e056ddeb972e93f3bfdcd427
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SSDEEP
1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsijS:BbdDmjr+OtEvwDpjM8D
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 2024-10-02_bc56b38f277d7ab969834fe2d37f4281_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4468 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 2024-10-02_bc56b38f277d7ab969834fe2d37f4281_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 3208 wrote to memory of 4468 3208 2024-10-02_bc56b38f277d7ab969834fe2d37f4281_cryptolocker.exe 82 PID 3208 wrote to memory of 4468 3208 2024-10-02_bc56b38f277d7ab969834fe2d37f4281_cryptolocker.exe 82 PID 3208 wrote to memory of 4468 3208 2024-10-02_bc56b38f277d7ab969834fe2d37f4281_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-02_bc56b38f277d7ab969834fe2d37f4281_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-02_bc56b38f277d7ab969834fe2d37f4281_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3208 -
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:4468
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD5d3c6f3d796cbe8f95bf676e1903552d3
SHA1e00ac8d2008a046883d382e55b4c5e014da1eb75
SHA25628a80ef11ed16697c075b4c272db857a02bc94bbd0178026165012fdda088ac5
SHA512ed8d5edd85b73107c5b63fc9d6e9480b81963ce20d359bcc6614b5a914be20e89a06b61ae1afbd42bae2607a7b93432316380c8998b69c47067d676e44c34a90