Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
02-10-2024 01:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe
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Size
29KB
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MD5
29bd797fbabc3955a90a04e931659032
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SHA1
044c5626e2a98617e187255b56b91ed28c5848ad
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SHA256
59122a234a148c9c62f4eaadc6262eaccb91bb1aa27ab5f05ae6ab0bbe9507f8
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SHA512
1c740732d9a9b2bf091699fd8055386f5478e3b1442187726fa825ea7ffc0d2e5cb711ff691c4c10cfb8a442b1fed0cd7d0443be3cece792ccda0b2bcfeb4502
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SSDEEP
768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGuOtCF7WDQC:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XJ
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2948 hurok.exe -
Loads dropped DLL 1 IoCs
pid Process 2416 2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.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 2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hurok.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 2416 2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe 2948 hurok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2416 wrote to memory of 2948 2416 2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe 31 PID 2416 wrote to memory of 2948 2416 2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe 31 PID 2416 wrote to memory of 2948 2416 2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe 31 PID 2416 wrote to memory of 2948 2416 2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-02_29bd797fbabc3955a90a04e931659032_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2416 -
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
PID:2948
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
30KB
MD57440b2bf113e4d7c6635b2e2a2aa80ba
SHA19cc69170ac29997f1d03383b7d78a150b4097309
SHA2568a37cee54f0cd22b68d34070b2af963f26a3e2540e8a520a53601048292e0560
SHA512d3a32d9b5426cd81e4d12275c4b12508e3200ff76d542c467854f9eff7d07a4d39e50280a2c48ccb56041188e62b9a638a29d3d55719883546bac9e645312fab