Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
09/10/2024, 14:21
Behavioral task
behavioral1
Sample
2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe
Resource
win7-20240704-en
General
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Target
2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe
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Size
90KB
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MD5
eb2727c198ff658eb8185c59cd9df33f
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SHA1
fa06dfbbd72a1094e29a337545e2b70e219c2bc1
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SHA256
3802ff37f3c73aa7162c5a3161906b700bc63d4c2b456f92b39efbe055a830d6
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SHA512
cbd34b096d38179992113940ccc22ec8448934c2d9766d4e8726592f3b6028bfbe5eb4bab73ced4a46eeaed92e03ba3e7d0f9492a9aef9d0b9e10360678201eb
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp0:AnBdOOtEvwDpj6zP
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2732 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2852 2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe -
resource yara_rule behavioral1/memory/2852-0-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/files/0x000700000001211b-11.dat upx behavioral1/memory/2852-16-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/memory/2732-26-0x0000000000500000-0x000000000050F000-memory.dmp upx -
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 asih.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2852 wrote to memory of 2732 2852 2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe 30 PID 2852 wrote to memory of 2732 2852 2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe 30 PID 2852 wrote to memory of 2732 2852 2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe 30 PID 2852 wrote to memory of 2732 2852 2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2852 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2732
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
90KB
MD5b8d8a9423b67b2123b459882c96dc087
SHA178b042c0b4d5aae4cfe0caadb411bc3a625e697e
SHA25606bfa9c72da779d39445a6d66bc12ab1e928d68b94da3d3942f1e3cbdc78af76
SHA5123e9b2deee624e482fba331def8b70f0787e4e559fc8a89887e56302c103b31144d31be90991a37dfdefe7d038fb4152d1ce64e1f4d300e04c1a001b04de9dc6e