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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
20/02/2024, 05:52
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe
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Size
76KB
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MD5
6fc5eccc3c6483934f067f892655b093
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SHA1
c81edaed33e5705e13cc75295a7bc8707fdd0a3c
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SHA256
f800fcd49a40999384cfd205c4552a90a418e8ad626e90b3100438926a1fd1c2
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SHA512
473958b523ab26175de09a785b5f456ef7a6b392c29d5f2fb4a2dad483c45191f8b80a693e5e7e3a86aa5b51dc68cac50209420cb4ff676e42bbdf735423fb43
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SSDEEP
1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KuA5A:ZVxkGOtEvwDpjcaf
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023209-13.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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation 2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4280 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 4460 wrote to memory of 4280 4460 2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe 84 PID 4460 wrote to memory of 4280 4460 2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe 84 PID 4460 wrote to memory of 4280 4460 2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4460 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:4280
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
76KB
MD5dae138536d7de9857e2cc487e4135bb6
SHA1080e2c8776332bd77005f31857a96c42af1f4f7d
SHA256c7b9bad52a4550881df0bf3ccde8c75524a7de469b6a50cd561b4e557e5c65e9
SHA512165418a025cfde61ea83891b1de4f44265209396617a88dd46012c7a3b74adad845b320a1b6c333f24ea2d1f419986f3538e14b92a0d52f9e7e02a8efcbe101c