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Analysis
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max time kernel
95s -
max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14/10/2024, 04:58
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-14_b9bb8a972f3c1b0ad8c2c5ccdd31dc18_cryptolocker.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-10-14_b9bb8a972f3c1b0ad8c2c5ccdd31dc18_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-14_b9bb8a972f3c1b0ad8c2c5ccdd31dc18_cryptolocker.exe
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Size
67KB
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MD5
b9bb8a972f3c1b0ad8c2c5ccdd31dc18
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SHA1
2423813f6be98e42d3fa0dd88a3ea542fe65607a
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SHA256
9a1bf4914b1fd08d15144b09c88041d56425c1fc7a6ce5ce4f9917b870ee275e
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SHA512
981b4a9d0281f45dcb53f101b3c4d809f6c86bdf26c77f61c20a41123e6ed965a41615aa1a796f3b8b44f176177ccaf1b76824fa8ab186853fa7585ae231b25a
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SSDEEP
1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293WQ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7H
Malware Config
Signatures
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Checks computer location settings 2 TTPs 2 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 2024-10-14_b9bb8a972f3c1b0ad8c2c5ccdd31dc18_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation hurok.exe -
Executes dropped EXE 1 IoCs
pid Process 1672 hurok.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 2024-10-14_b9bb8a972f3c1b0ad8c2c5ccdd31dc18_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hurok.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1280 wrote to memory of 1672 1280 2024-10-14_b9bb8a972f3c1b0ad8c2c5ccdd31dc18_cryptolocker.exe 86 PID 1280 wrote to memory of 1672 1280 2024-10-14_b9bb8a972f3c1b0ad8c2c5ccdd31dc18_cryptolocker.exe 86 PID 1280 wrote to memory of 1672 1280 2024-10-14_b9bb8a972f3c1b0ad8c2c5ccdd31dc18_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-14_b9bb8a972f3c1b0ad8c2c5ccdd31dc18_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-14_b9bb8a972f3c1b0ad8c2c5ccdd31dc18_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1280 -
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1672
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD5e7f7de61902c2ee795ec3f9205802262
SHA170ed359045f365b098e6e938cea4c9ca7d4b09aa
SHA256b88309f8dc41695180f87d4ff32af77934069ee52d71a9bff78ebdaaebb644bd
SHA512c4f6befaaae23f13aeb7b4f7065ecdd811df8268904ef5d9a9ccd6ed2a66389cf0ba849ec80218109aa626df974ab12ddedee4701b1d50bb3d7c96f1cc17638b