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
04-09-2024 22:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-04_03ec9ad587ec5da57317126fe9620f94_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-04_03ec9ad587ec5da57317126fe9620f94_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-04_03ec9ad587ec5da57317126fe9620f94_cryptolocker.exe
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Size
47KB
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MD5
03ec9ad587ec5da57317126fe9620f94
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SHA1
8402f524e19c0b4db10067aa60796934d0730551
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SHA256
2c5f889c0ee2875232844939e32435f85b25d20a887cd1d2c63b5ce64154ba3e
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SHA512
c2c59d38544a0d938434effb9beb4ab06618a10a0cab9d3a5da40867d3c583a50dbf91918df5d1f97bfc647be8b02b726186775d9fc96f074a2f2ace98c39ed8
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9J5:X6QFElP6n+gJQMOtEvwDpjBmzDkWD9
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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation 2024-09-04_03ec9ad587ec5da57317126fe9620f94_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4592 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 2024-09-04_03ec9ad587ec5da57317126fe9620f94_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 116 wrote to memory of 4592 116 2024-09-04_03ec9ad587ec5da57317126fe9620f94_cryptolocker.exe 84 PID 116 wrote to memory of 4592 116 2024-09-04_03ec9ad587ec5da57317126fe9620f94_cryptolocker.exe 84 PID 116 wrote to memory of 4592 116 2024-09-04_03ec9ad587ec5da57317126fe9620f94_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-04_03ec9ad587ec5da57317126fe9620f94_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-04_03ec9ad587ec5da57317126fe9620f94_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:116 -
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:4592
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
47KB
MD5bcc178aff9cb496cbe791a91b9d09c2f
SHA16692f6896e41f2bda05ebc4c644d0d1b6acf6d42
SHA256aeb39b55f919ecff4e02116f0ed16009804b08822cc27d9035655936a7b3572a
SHA5129992e21cfd13ceb44e268ef04d67f2673739bd7cf50fc72018f5a9eaf1f38ee9604fd1a422398923ea1d3c9da3db3d5af0216d809b94672905b030f7338a9a5f