Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
03/06/2024, 10:33
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe
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Size
46KB
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MD5
7cab398bc4361489fa2d0b19469bc951
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SHA1
00bc856cabd48a6738486206b9624ef9e2f36c8a
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SHA256
9d530fa85d11af5879f9dc5986b047239493e45e42a136a2c58002ab6e2bbf3c
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SHA512
813a5b4d553c91617fe13950410fb3b5b10536fb76981248e9c08ba56e24fb7ea8836f50d0e6c0c958fcfb0ff20b0bbd9ff6c4e1e56627bf5d95f2fd1ff026b8
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Y1:X6QFElP6n+gJQMOtEvwDpjBmzDkWDA
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0008000000022f51-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x0008000000022f51-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3492 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 388 wrote to memory of 3492 388 2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe 83 PID 388 wrote to memory of 3492 388 2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe 83 PID 388 wrote to memory of 3492 388 2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:388 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:3492
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46KB
MD5ae642f5758662b964aa9b26a59921d4f
SHA169320cc673a88d30f811cbbad4f69becd911214e
SHA256924a3d653f8ab907d57590bcee278d6cf8f347dee1c85ff02401de706a79c95a
SHA512aa8677a0eac7fdc1d51b0ea1ce117ae7732fc90c13a5ee6ab73c33914ad362874a65721b5c193d34f2f902ce017ac5d97443f629c892f870ca61c1fbf9632f7a