Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
25/01/2024, 20:25
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe
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Size
50KB
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MD5
54dd908d8c8886494a5b9b91764baccf
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SHA1
0191c7fcccaef6c7260b8725d27efa1133886315
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SHA256
5459259fce86414bda859055216a1aeb868c19d018edfa9b4927587f147ba9e0
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SHA512
3ac11f9c80afa383b4713b43160081ba3051f7334b6d79fe460926d8412186adda4517bcd1a5d71e3386ac859d74fb7c9c9cb05c2a0b140f7c82355466b04c66
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaToguM+:X6QFElP6n+gJBMOtEvwDpjBtEJNM+
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b0000000126e7-21.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000b0000000126e7-21.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2316 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1736 2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1736 wrote to memory of 2316 1736 2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe 21 PID 1736 wrote to memory of 2316 1736 2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe 21 PID 1736 wrote to memory of 2316 1736 2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe 21 PID 1736 wrote to memory of 2316 1736 2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe 21
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2316
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50KB
MD5f542c3f8ebe1b1798efea4068ba30d15
SHA15675766fc84c6771781641edd2f9dd0c89fc5116
SHA2567108a53cb57453b6ecc1350ba45060b82af683b3cde68ab35e31b599511756ca
SHA512e357b1c82fd4ad1cb97fb2d1fdef66a8d5d57be34cd0c197cac1aaa4870477182cc0268bddcf554758e7f6d1384e6c87f0c91c0fc1086000ebf581c6b5c92c30