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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
20/05/2024, 20:32
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe
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Size
41KB
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MD5
d0e1f98d523b55f46232cce5abd6d9f3
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SHA1
ef9297868eacf93ffe85969acc4cf85996f4c9bf
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SHA256
9c5ffc0f34db4bdb66898c2ea7e7c002d80e21910fb47ca95de7a683b3a36cb0
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SHA512
d2875eeee75a8a2c69790144c1ae62f83216079c49ae480da8c8007b0cbb6fdceb62ac121482a4dbb6d622305ace4fc7b6f4761913ccbfd1d24cc6c5dc201e6f
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SSDEEP
768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9xgym:bIDOw9a0Dwo3P1ojvUSD79yym
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b000000015cbd-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 3020 lossy.exe -
Loads dropped DLL 1 IoCs
pid Process 1776 2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_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 1776 wrote to memory of 3020 1776 2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe 28 PID 1776 wrote to memory of 3020 1776 2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe 28 PID 1776 wrote to memory of 3020 1776 2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe 28 PID 1776 wrote to memory of 3020 1776 2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1776 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:3020
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD5a2e65aeba5b9965510e1b2062b242d55
SHA1308867f7baae88a6533ff6e43eee36894f4c5fda
SHA256c95ebf96ce742dbb910e2cb278a406bdcf74894481e4fae423201da9bbf6f143
SHA512161e3d3be00ff471e3415f216b6eb138bab51723ec6ae2c306d0d379a0a5c823c8792997da022bd5559d9aebb0784c9cfd3bc286dee65b44f061bca2524d4cef