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Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system -
submitted
22/02/2024, 19:28
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe
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Size
52KB
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MD5
21776d01863746356ed49886706dbe24
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SHA1
68c183c06b4255ad7a1d03d2c32a752f5da0d5f4
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SHA256
1a18a891e8d7d2b5e6f51c4eba25a3ab78a4e688f85aecfeb84392b3c589da16
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SHA512
e940a1cfe4e14aa7383e47ea0a4496faeb0a7ffb0874a17bbeefe73941cf5ed2af52876012e6bf0c27bcb79cf7e369a8132a85dfad86ab610b6cd69bda532c3b
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SSDEEP
1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdO5Sk:ZVxkGOtEvwDpjcr
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000b00000001e597-13.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-1-5-21-1712835645-2080934712-2142796781-1000\Control Panel\International\Geo\Nation 2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3612 misid.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 4380 wrote to memory of 3612 4380 2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe 91 PID 4380 wrote to memory of 3612 4380 2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe 91 PID 4380 wrote to memory of 3612 4380 2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4380 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3612
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
52KB
MD5997b9211eb6a6ddaa9458bc49a3bfe1f
SHA1d22ecf3edc976a7b3a477164314e5503e8215e95
SHA25687530047ffad3b2f53373f337026710d2200e82b60fc652d876970dbe304bc2f
SHA5127f3312f9c2685c7cc8d030340bca2a78a8c4cbb057aa320ab9f8f91bf11bc5090d419e11ab0a6740c95ee11254f09aa53c44b29e44b754651459030e7bec9d38