Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
28/02/2024, 10:07
General
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Target
2024-02-28_b8d3badb5a618dcc26eaefd2f7ca708e_cryptolocker.exe
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Size
62KB
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MD5
b8d3badb5a618dcc26eaefd2f7ca708e
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SHA1
43c30df501c71fae55989db4eea328c009948252
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SHA256
760709a9681e6c6ea5819b3d51d51af817c21485532b731db99db64d1ab4ce2c
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SHA512
14e6e471b571447c20e9416a8b39ecf336f511b7968ebca7357e4a39a06a8f65fb4de406c02e7a0ae7a238d7b36d79724580b45fc7edb10c8b3393ff08687775
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SSDEEP
1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtstk:BbdDmjr+OtEvwDpjM8C
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
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Detection of Cryptolocker Samples 2 IoCs
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UPX dump on OEP (original entry point) 4 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 1 IoCs
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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
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-28_b8d3badb5a618dcc26eaefd2f7ca708e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-28_b8d3badb5a618dcc26eaefd2f7ca708e_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
62KB
MD5ef0fb627a7f27f2c7eb316f1dce1de8a
SHA13c0835b675769908deaaf6d014edd328d40eb839
SHA2561e9c6cdc5f8b4df638d7fec43321ecc0657f00af7b8aac83a9d81c03615fe5e6
SHA512f0563e1c73beb87b36b881a5dfbd810ab399e430a47357455fa8dabd3ebe8999d743488614891e036db92d4e8b92bf7fbab51f72ff057292dd4f76a5b0b308b4
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB