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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
29/03/2024, 03:00
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe
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Size
73KB
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MD5
6bb0b68534d4d640aa3d03e66841e20d
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SHA1
6734b7cb14c8aedaf5662abf87356ebab41afa9d
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SHA256
472ce7b28e3ffdc67f07b84b3b9b227f05fa813f9363bb976bb8a0ae2f16ba80
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SHA512
e004bf776192385702e2097accbfb45c61e1b9b575cdc9b19bd505f988023b607f164f44f624f3ca31887ffdda502b50b97d7cac17ad879b533a0c1643fa55f6
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHMk:X6a+SOtEvwDpjBZYvQd2L
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0009000000022708-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x0009000000022708-12.dat CryptoLocker_set1 -
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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation 2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2512 asih.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 4400 wrote to memory of 2512 4400 2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe 87 PID 4400 wrote to memory of 2512 4400 2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe 87 PID 4400 wrote to memory of 2512 4400 2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4400 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2512
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
73KB
MD5bc5efc22b612dcd03092f33ef867e10a
SHA125d759770c074f776886fcc63984a1f33d69f430
SHA2564b0b0deecceca70c87abf6f3e402c3221429ed64a62e91dd66c153633672cf96
SHA512e22303ee18b2be6b69e25094576225f609f27cc62338b8386b08818143bad1f3d9a3f9cc7ad825284f1bba67a6e236e8acd0b5a60b573c1e526b2079d65ed000