Analysis
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max time kernel
87s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
07/09/2024, 06:39
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-07_6d1471eadaae4cf99ac8438c06f9ad4e_cryptolocker.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-09-07_6d1471eadaae4cf99ac8438c06f9ad4e_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-07_6d1471eadaae4cf99ac8438c06f9ad4e_cryptolocker.exe
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Size
49KB
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MD5
6d1471eadaae4cf99ac8438c06f9ad4e
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SHA1
db9d13ef1d157854414d73faad85876ac7f07cf1
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SHA256
203dc8c47124ff52b9c45b7604dde5a68b99ed1e25bdabd8bb1cfb5ab0ac12d7
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SHA512
c6bb2bcbb1c3e4f7034027fc0ea0f67c419652fe7bf0780e6566103f08d722c5093b12fd0365e4138960c1b14a219ff858e0f784bb3d6e3131d077027a318934
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SSDEEP
1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatsh/:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7q
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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation 2024-09-07_6d1471eadaae4cf99ac8438c06f9ad4e_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation hurok.exe -
Executes dropped EXE 1 IoCs
pid Process 2828 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 2024-09-07_6d1471eadaae4cf99ac8438c06f9ad4e_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 4568 wrote to memory of 2828 4568 2024-09-07_6d1471eadaae4cf99ac8438c06f9ad4e_cryptolocker.exe 85 PID 4568 wrote to memory of 2828 4568 2024-09-07_6d1471eadaae4cf99ac8438c06f9ad4e_cryptolocker.exe 85 PID 4568 wrote to memory of 2828 4568 2024-09-07_6d1471eadaae4cf99ac8438c06f9ad4e_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-07_6d1471eadaae4cf99ac8438c06f9ad4e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-07_6d1471eadaae4cf99ac8438c06f9ad4e_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4568 -
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:2828
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD5611c4ddf0e5c5c2253a065970a74317f
SHA184688bf48466de20f5eac413f9c7b85cc1c36496
SHA256f65b687f08310792b977a141121246ad3e560b9fca9d0b3b64ceced7667072b0
SHA51285ed236b8eb0bef192883fdb5a87d223132417448cec83cd73d2f02bbab32b2b09241a4d23bc8bdde8e2de8829aa2c552dc6120ac3ba14995c585ce16616d4d6