Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
09-05-2024 11:46
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-09_a8bac107e47ae44b5e290618a5a39033_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-09_a8bac107e47ae44b5e290618a5a39033_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-09_a8bac107e47ae44b5e290618a5a39033_cryptolocker.exe
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Size
36KB
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MD5
a8bac107e47ae44b5e290618a5a39033
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SHA1
9affa467c89fdb2c43ea5577b392720522474113
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SHA256
2083d021e9ec99a0631423dfc89e45940d1299952e63b2efd4b97662065f8a8b
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SHA512
3d3b88956326cbca496eeff9145a176ebf57ce434c2740136c44ef47d8d102b6a77590ad33d4532b326d4b1a1c4564c3f98d8f1f91a549e94d88a160192cbdee
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SSDEEP
384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6c3l8Sz960SPluRiib:bAvJCYOOvbRPDEgXRc3SSz3SPEz
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000700000002328e-12.dat CryptoLocker_rule2 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation 2024-05-09_a8bac107e47ae44b5e290618a5a39033_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4588 demka.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2152 wrote to memory of 4588 2152 2024-05-09_a8bac107e47ae44b5e290618a5a39033_cryptolocker.exe 84 PID 2152 wrote to memory of 4588 2152 2024-05-09_a8bac107e47ae44b5e290618a5a39033_cryptolocker.exe 84 PID 2152 wrote to memory of 4588 2152 2024-05-09_a8bac107e47ae44b5e290618a5a39033_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-09_a8bac107e47ae44b5e290618a5a39033_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-09_a8bac107e47ae44b5e290618a5a39033_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2152 -
C:\Users\Admin\AppData\Local\Temp\demka.exe"C:\Users\Admin\AppData\Local\Temp\demka.exe"2⤵
- Executes dropped EXE
PID:4588
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
36KB
MD5031bc720bbdc5a7a7166004a4e5a654c
SHA12538ae41d7399cfb332308438746656ae37948df
SHA256fabfbac149715cd8ba00f9e10437351f4adabd295d494e4c951cf2a086d00239
SHA512db8c40cf753db31fb64727221ff5f7948ad7bc62ed96d25564b91dc543a2d571bd5f4f482cbad5353b2974b8f8a624082200940285e3ed1d4f32cc2eaa9da067