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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
13/05/2024, 19:34
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-13_622ce6eaaaef1052095a19d9259e7a77_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-13_622ce6eaaaef1052095a19d9259e7a77_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-13_622ce6eaaaef1052095a19d9259e7a77_cryptolocker.exe
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Size
44KB
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MD5
622ce6eaaaef1052095a19d9259e7a77
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SHA1
bacb0cfca2079fcf9a4221837875bd7aff90177f
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SHA256
58225887b0232d1f7fe81fe08f791d15acc6bd9f93352d4f2052500700a01598
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SHA512
e7c2dc6e361fa9fd1c95db7a6eccef26d138079e2f84f884897e41d199d50eafd8e20cab1acaabb4f20ea34e2cce48b4d927fa34643d89d8c8850a057d6340b6
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SSDEEP
384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jo0nrlwfjDUpEui0U3o:bm74zYcgT/Ekn0ryfjLuH
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2968-0-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d0000000139d9-11.dat CryptoLocker_rule2 behavioral1/memory/2968-15-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2564-16-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2564-26-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2564 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 2968 2024-05-13_622ce6eaaaef1052095a19d9259e7a77_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 2968 wrote to memory of 2564 2968 2024-05-13_622ce6eaaaef1052095a19d9259e7a77_cryptolocker.exe 28 PID 2968 wrote to memory of 2564 2968 2024-05-13_622ce6eaaaef1052095a19d9259e7a77_cryptolocker.exe 28 PID 2968 wrote to memory of 2564 2968 2024-05-13_622ce6eaaaef1052095a19d9259e7a77_cryptolocker.exe 28 PID 2968 wrote to memory of 2564 2968 2024-05-13_622ce6eaaaef1052095a19d9259e7a77_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-13_622ce6eaaaef1052095a19d9259e7a77_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-13_622ce6eaaaef1052095a19d9259e7a77_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:2564
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD53b4caa357302539514a8e9e665b2a669
SHA130c5efb5f1fcef922d7fb4ee53400b438d43e308
SHA25626c53674eda38f0a6629002183a878a44b991449bd4ef419eccba090d03182f1
SHA5129666db6c03ec2f0894c9218c8ba39cb4ecf4bd62a9e837649a61df91f49e70ce5e1243ee9e9226b4f81962984b086721bc1b530a79599783712fdda2ddec49e2