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
09-10-2024 04:05
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-09_7276238256b832c6e0ca660875118b45_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-09_7276238256b832c6e0ca660875118b45_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-09_7276238256b832c6e0ca660875118b45_cryptolocker.exe
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Size
53KB
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MD5
7276238256b832c6e0ca660875118b45
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SHA1
5d101720a86a66e0743fe68ddd9bbb7a43e630d7
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SHA256
ed82198b2f269562f0745e863a54c23682ecd79e9dc6b2f79779c13ff98eb029
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SHA512
feef271a4e96c6ee05d5c3545d306f16618d3d8c041fe95d3c01b571f768aa1490263e2a51b299c28aaceab77bb75bf18a28fe8036b3642de07e75a45619bc57
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaT6:X6QFElP6n+gJBMOtEvwDpjBtExmlO
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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 2024-10-09_7276238256b832c6e0ca660875118b45_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3640 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 2024-10-09_7276238256b832c6e0ca660875118b45_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 1920 wrote to memory of 3640 1920 2024-10-09_7276238256b832c6e0ca660875118b45_cryptolocker.exe 86 PID 1920 wrote to memory of 3640 1920 2024-10-09_7276238256b832c6e0ca660875118b45_cryptolocker.exe 86 PID 1920 wrote to memory of 3640 1920 2024-10-09_7276238256b832c6e0ca660875118b45_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-09_7276238256b832c6e0ca660875118b45_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-09_7276238256b832c6e0ca660875118b45_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1920 -
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:3640
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
53KB
MD5d705fcaff510812a7dd0ce8c097ca4b7
SHA174d2f8120930398fc29b6757a2f6e31163722b7f
SHA256e995f4376e37cd2cf17d08bf203d57afd0dca4fa88ff65d5cf404cf4c2c51e3c
SHA512251a58961b0be7e0f8a18ac7ad8a74dda1d7a0b5d48286a696f54d88ee2a2f081af9c6bda5b23be42af6fd7688fc9494ce1bbbe08d3c0e0bbff3343ca99fcdfe