Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
13/10/2024, 07:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-13_ad94f646c631b4e1f83a52ed876364ef_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-13_ad94f646c631b4e1f83a52ed876364ef_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-13_ad94f646c631b4e1f83a52ed876364ef_cryptolocker.exe
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Size
57KB
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MD5
ad94f646c631b4e1f83a52ed876364ef
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SHA1
83d2743f146b1486cc4ee202898ef0f7dd425588
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SHA256
4d07ace20885b7d33d3a5338f046703eacb2fab948ef6a49262807c34fc450b4
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SHA512
862489dfcf3bd6eed5eddaf266d841e969cd1d02310236e6dcd4f708c7e9da48d36da4d088bd0f4db69fd80428f872c846116b7efa75e9e0e2ff961e85d50904
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/cM7:X6a+SOtEvwDpjBrOj
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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 2024-10-13_ad94f646c631b4e1f83a52ed876364ef_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3048 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 2024-10-13_ad94f646c631b4e1f83a52ed876364ef_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 3436 wrote to memory of 3048 3436 2024-10-13_ad94f646c631b4e1f83a52ed876364ef_cryptolocker.exe 85 PID 3436 wrote to memory of 3048 3436 2024-10-13_ad94f646c631b4e1f83a52ed876364ef_cryptolocker.exe 85 PID 3436 wrote to memory of 3048 3436 2024-10-13_ad94f646c631b4e1f83a52ed876364ef_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-13_ad94f646c631b4e1f83a52ed876364ef_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-13_ad94f646c631b4e1f83a52ed876364ef_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3436 -
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:3048
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
58KB
MD5c7cf7763af5234d520254c4bef343ff5
SHA1577fe54b04276518a2ca889605e4a97fba0c6c63
SHA256cdbed28e253de07fde2f183b8c58309336fa58282d0b3d8d1439d5b2e73ae603
SHA51264fe564b9bbac7554c3d513240f758872d3e73188d8006d04b244b89b6861825d29f60e7afd0394f73796d42dc9615f18cf8eaa4e19662feee51d9704a6209b2