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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240319-en -
resource tags
arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system -
submitted
17/04/2024, 03:39
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe
Resource
win7-20240319-en
Behavioral task
behavioral2
Sample
2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe
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Size
388KB
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MD5
4bb5eec13b3cc707961f391b3af60be9
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SHA1
d25785479cee9da95cc0d65ccbbcf262651dbe58
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SHA256
b23f8f4ce6712274e8b6200a35b112d02a867c0819a94ee3feaa736475f6fc11
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SHA512
28142373e2aa466432bc1c6365e9ece1bbfb0b157d2957dd3678737b01da74ad61d38503d8afaa3a468ed666e586e03e3998143ebfdf0161afb211163ec5e8e6
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SSDEEP
6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXU:nnOflT/ZFIjBz3xjTxynGUOUhXU
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b0000000121e6-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2204 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 1728 2024-04-17_4bb5eec13b3cc707961f391b3af60be9_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 1728 wrote to memory of 2204 1728 2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe 28 PID 1728 wrote to memory of 2204 1728 2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe 28 PID 1728 wrote to memory of 2204 1728 2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe 28 PID 1728 wrote to memory of 2204 1728 2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:2204
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
388KB
MD52ff3b67b8918244f60d2968b2965285d
SHA12d00e0941e35b97a7772da13f96b5ef1448f61aa
SHA256b75420043e48843464e4052e0990a0fdc34fb7b89f174db2288d3f3a460d95bd
SHA512c708a14e54204a14060819a14427040e9fb447a790d061f10de62922e96d50ea3527b81848eb9fbdd9ee3f0db29d93264dcebf38ab7f0fbe1c48d902a06aed45