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Analysis
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max time kernel
149s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
23/04/2024, 00:55
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe
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Size
44KB
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MD5
8be8e873910b1c0a9dac6f267fcbc057
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SHA1
99ef8b4a025439a9864c3ff52a5546f9e26ff80e
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SHA256
f2b24d2dbf28e2773ec8f85c20db3af9acab854bb78fc61461ad5e7164fae005
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SHA512
dfdea49d20ec348a4e2b36a3ecac31db71f9a484549db732e71435ac00c5bb66a4ff9878499ab5501ffe46ce3af85973935a50f60b99b4c30850bb99bc0a305e
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SSDEEP
768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+syQNN:bgGYcA/53GADw8Cl/w
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000900000001447e-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 1956 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 1680 2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_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 1680 wrote to memory of 1956 1680 2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe 28 PID 1680 wrote to memory of 1956 1680 2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe 28 PID 1680 wrote to memory of 1956 1680 2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe 28 PID 1680 wrote to memory of 1956 1680 2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1680 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:1956
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD53566f1013139845d563a4c3795bd1550
SHA1ab13d6161b3d48904affeba469e26c927b0f79bf
SHA256f7bfda86d0ca4f32cd2c32f336317de43ef6de8a801281ce7ea52984288f64e5
SHA5129420e2c5bfc9dad9b8ebb5a70c5b2ecacc1618e1bd9152b87591629597ef784e277b9c9dc337270744f41ad93d8ab441d7f1c6afafe6af79835815ce35463360