Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
02/06/2024, 00:52
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-02_d097099656da7c3f4184548cb2c8055f_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-06-02_d097099656da7c3f4184548cb2c8055f_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-02_d097099656da7c3f4184548cb2c8055f_cryptolocker.exe
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Size
49KB
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MD5
d097099656da7c3f4184548cb2c8055f
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SHA1
3d8df43c7cc591a639d49ac145b98ca77c632e32
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SHA256
d665c773bb2b595e5945b55adaa25f7f0cc81dcd5455bc489196e0f69492f176
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SHA512
78cd11a01a5c0968f4f2acbdeebe407fdad92f5bf60c0b21e79fe8887880024bc47e21c1ab322cfc219b2da017e651e3c8095b262e79fcb13710d4d7c663e130
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfV:X6QFElP6n+gJBMOtEvwDpjBtEdXfV
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023305-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023305-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation 2024-06-02_d097099656da7c3f4184548cb2c8055f_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2124 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 4244 wrote to memory of 2124 4244 2024-06-02_d097099656da7c3f4184548cb2c8055f_cryptolocker.exe 82 PID 4244 wrote to memory of 2124 4244 2024-06-02_d097099656da7c3f4184548cb2c8055f_cryptolocker.exe 82 PID 4244 wrote to memory of 2124 4244 2024-06-02_d097099656da7c3f4184548cb2c8055f_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-02_d097099656da7c3f4184548cb2c8055f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_d097099656da7c3f4184548cb2c8055f_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4244 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2124
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50KB
MD5387f3bacf276247f26feaa22ddf2c07e
SHA122e6c7f37d48da8e9603ff422acbf1c0072c0bcd
SHA25662cda057b5b88ec40daf7618d39ed696ffaec1e7d369eaecaa92f328378b12d8
SHA5122dbb91d7cac400e4e2caa908bb4df834b5c498b35e01754b9ccc2fd2c7e199fd1446a6b83175a55903b84b86e21ca79dc828a8ecc30a5646a9e481a99f13cff7