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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
15/10/2024, 04:00
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-15_f731807ffb6211816de7201d89804771_cryptolocker.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-10-15_f731807ffb6211816de7201d89804771_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-15_f731807ffb6211816de7201d89804771_cryptolocker.exe
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Size
43KB
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MD5
f731807ffb6211816de7201d89804771
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SHA1
e763fd9e4d6f32ef698ec601b8e8c73376d656b4
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SHA256
45a4e6a72afb0bd68362e69be8c712a6df54051ec897e4b76789b288a2596731
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SHA512
b6d1ddeae078536327a5e7b41bab423af57681d6c03842b37d7ff8e82b397ca6b6a77149b40104ba054511e4938ff3ac664dc64621168485b37457b9a3e43f93
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SSDEEP
768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedmhTTHFc:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+5
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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 2024-10-15_f731807ffb6211816de7201d89804771_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1324 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 2024-10-15_f731807ffb6211816de7201d89804771_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 1340 wrote to memory of 1324 1340 2024-10-15_f731807ffb6211816de7201d89804771_cryptolocker.exe 86 PID 1340 wrote to memory of 1324 1340 2024-10-15_f731807ffb6211816de7201d89804771_cryptolocker.exe 86 PID 1340 wrote to memory of 1324 1340 2024-10-15_f731807ffb6211816de7201d89804771_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-15_f731807ffb6211816de7201d89804771_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-15_f731807ffb6211816de7201d89804771_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1340 -
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:1324
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD548443d49a7abd8ac94a4c9468a187664
SHA15f4b82c3a106153635400acfe87021d54960abc1
SHA256dea6131e39e38c41ee577bc73e544e837f9dbe9bf89611922cc39a67b5150ac2
SHA5122509c8548ce6c4f4f225358a32775abfd6cc1c685e0ffe8eabead65f69d9ae28db754557175573d87ab1b236e3dc1c3a00e3dd992082c1a3cdd26f5f4a969917