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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system -
submitted
21/02/2024, 14:39
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-21_6f65e2e9ddbe641941a9eaf31de78985_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-21_6f65e2e9ddbe641941a9eaf31de78985_cryptolocker.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-21_6f65e2e9ddbe641941a9eaf31de78985_cryptolocker.exe
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Size
30KB
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MD5
6f65e2e9ddbe641941a9eaf31de78985
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SHA1
c789da7ee3629b9d25a29c4fd9a33f8e25cb6c02
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SHA256
0b60586e12c271aaff1bae59199fcd911cf01272fec233e3a99cfc837be2dc6c
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SHA512
0a829dcceaa5cd6ee49b2da65d6cf8aa81ee69740d4931f78efc954c450fa0c3db03003c1dfd69a4783641dacdc89e9cf7751dcae439be5781503d3c408030d0
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SSDEEP
384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJ/Tl+6lt65W:bA74zYcgT/Ekd0ryfjQRSlpltt
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0006000000023206-12.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-1-5-21-1414748551-1520717498-2956787782-1000\Control Panel\International\Geo\Nation 2024-02-21_6f65e2e9ddbe641941a9eaf31de78985_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4240 hasfj.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 1784 wrote to memory of 4240 1784 2024-02-21_6f65e2e9ddbe641941a9eaf31de78985_cryptolocker.exe 86 PID 1784 wrote to memory of 4240 1784 2024-02-21_6f65e2e9ddbe641941a9eaf31de78985_cryptolocker.exe 86 PID 1784 wrote to memory of 4240 1784 2024-02-21_6f65e2e9ddbe641941a9eaf31de78985_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-21_6f65e2e9ddbe641941a9eaf31de78985_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-21_6f65e2e9ddbe641941a9eaf31de78985_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1784 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:4240
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
30KB
MD5996f2eeb12087e59824ce5ccdc0d7306
SHA124cfb17329ceb429bb5823827281f522698540bd
SHA25696d1fdd20c58565278c4c9ccab4ff3d9400fbbd0e069634986b20221f4140ec3
SHA5121be82398692ce3ea96b86b6747e8678e2c12190b92fb87aa738feba44461e46dc2e7dcba780120d047b64451c2770d96e07a03c9c8cc1e47d93915c0432573d4