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Analysis
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max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21/09/2024, 00:43
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe
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Size
39KB
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MD5
5403d71e6d39344efa9f801cef5754a3
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SHA1
1b4213fbeab7919b7b450d55f7aa034fcefd7431
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SHA256
614682ac439d2db1dcb4144bf10b467f3ac79d448b7e2558cd22fddcc1227802
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SHA512
34ee8548d6ae3281096eec651c3214e3624a038833b1a4016aa869d5e029827422358395617ccda66732baa2fccf6803824404fbc85201e34f1b76ac82ad00b9
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SSDEEP
768:btB9g/WItCSsAGjX7r3BPOMHocM4vUUOmJ+t:btB9g/xtCSKfxLIcMzUwt
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2360 gewos.exe -
Loads dropped DLL 1 IoCs
pid Process 1852 2024-09-21_5403d71e6d39344efa9f801cef5754a3_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 2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language gewos.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 1852 2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe 2360 gewos.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1852 wrote to memory of 2360 1852 2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe 31 PID 1852 wrote to memory of 2360 1852 2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe 31 PID 1852 wrote to memory of 2360 1852 2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe 31 PID 1852 wrote to memory of 2360 1852 2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1852 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
PID:2360
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
39KB
MD5696dc02c39f45807a0515608f26938c4
SHA1aed5aeeecbcdd293bbbf9bae03425bfc28a62687
SHA2563ac1ff25d0124452981b387e5dfacbd9df534eadea56d96a2b22c17d0649b21b
SHA512463392bbc0e581ef9657a9fa4dafc533fa6653ec9198147cf175178e14c8e91b5a93786ca2d36d52aabb1f228fb375aa7a007c2aea51e844123e54be53ae6a04