Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12/10/2024, 10:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-12_d583e13b4cd87559f80629efc7aa3d51_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-12_d583e13b4cd87559f80629efc7aa3d51_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-12_d583e13b4cd87559f80629efc7aa3d51_cryptolocker.exe
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Size
27KB
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MD5
d583e13b4cd87559f80629efc7aa3d51
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SHA1
453fdd9c55a76d75752080c613323447edeec445
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SHA256
04f1afe2a8c29c1fe23e3d34e011ba3e1c3db323fe44c0ff7d647867914a8cf3
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SHA512
501075a806b471bd3a1a7565570877570c4016ce8034653ed7fcd8d47f7682f1bc66caf121bd7ba429eec8be563d59058ec28a128c9a65c8249e154bf9897944
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SSDEEP
384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJA:bA74zYcgT/Ekd0ryfjQRSK
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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 2024-10-12_d583e13b4cd87559f80629efc7aa3d51_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1400 hasfj.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 2024-10-12_d583e13b4cd87559f80629efc7aa3d51_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4752 wrote to memory of 1400 4752 2024-10-12_d583e13b4cd87559f80629efc7aa3d51_cryptolocker.exe 85 PID 4752 wrote to memory of 1400 4752 2024-10-12_d583e13b4cd87559f80629efc7aa3d51_cryptolocker.exe 85 PID 4752 wrote to memory of 1400 4752 2024-10-12_d583e13b4cd87559f80629efc7aa3d51_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-12_d583e13b4cd87559f80629efc7aa3d51_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-12_d583e13b4cd87559f80629efc7aa3d51_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4752 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1400
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
27KB
MD5dd9b1105aef60ee9a1d780d04774b867
SHA1e37873650dca134e56d93b5bdffbc221991f0068
SHA256c8ae83b85e5b42a0d0c6c9f569eec204cf5016eda5a568683057ee5372a2e2ef
SHA5126796cbf5962677fd18b2ee767c7e54024b99dde1131b64d5585b9d9f9f59d2d600e5b67edacccb1398b076110c50c8a7b63674eb34146abcdea91155705eeda9