Analysis
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max time kernel
93s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10/10/2024, 00:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-10_485aba98663c5492544b96e3cca00a3f_cryptolocker.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-10-10_485aba98663c5492544b96e3cca00a3f_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-10_485aba98663c5492544b96e3cca00a3f_cryptolocker.exe
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Size
36KB
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MD5
485aba98663c5492544b96e3cca00a3f
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SHA1
683e04da26a934fd19ea156bd3445b55f78f87e9
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SHA256
cb1ea3e5a9de80eef5a80e7206a41d9a8ee9e155230a4d6ba1a9b033b264bad5
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SHA512
32e7b2e57c660da03395d018d9a5b81e3159ddaa936d69b58aeca6b4feca449ea7ab4288ba90cb6bf8cd2cf42b2ebd40a63a57525eae2b16d9f10b960e17bf59
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SSDEEP
768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpNEmNOmnQBDng:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xd
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 2024-10-10_485aba98663c5492544b96e3cca00a3f_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 952 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 2024-10-10_485aba98663c5492544b96e3cca00a3f_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 2152 wrote to memory of 952 2152 2024-10-10_485aba98663c5492544b96e3cca00a3f_cryptolocker.exe 85 PID 2152 wrote to memory of 952 2152 2024-10-10_485aba98663c5492544b96e3cca00a3f_cryptolocker.exe 85 PID 2152 wrote to memory of 952 2152 2024-10-10_485aba98663c5492544b96e3cca00a3f_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-10_485aba98663c5492544b96e3cca00a3f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-10_485aba98663c5492544b96e3cca00a3f_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152 -
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:952
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
36KB
MD5ea9e1042624d3c46f7204fc22267f337
SHA1bfe3d471d3e9efe79b15f2788463b18671a3a177
SHA256460749676be55460518693977d15f2b14b0b5faae9efde4a4fd854801d9b0069
SHA512ce2ac2d5940d703dc190d93d3b16b8649598b9af80ab7dbf20f4409feb8fde33ebf07d39147c030f4536a709708085c1c5dc8b06771e6de9aa2ae8a410d73a91