Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
19/06/2024, 15:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe
Resource
win10v2004-20240611-en
General
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Target
2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe
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Size
54KB
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MD5
aa2a3f37c9d71099c1b8a61f7afdeeb8
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SHA1
f7d61832e4d9c73a2fa86bd967cd7f1c1dd99eb2
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SHA256
7e915e7418f83cbca20bba1c3ac9f655eef6a7e38409e88fc9ee7ba536afcc94
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SHA512
80c803220f6a0d10e9c10aa54254c94969ddd55e0b70e6f2f43979a755393524a78a706076332ebaa193d72e0a43d054c9ceb7ccf9c5023053a86da22134277a
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SSDEEP
768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9Xv+mb6uXsE:bIDOw9a0DwitDZzc16e
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation 2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2672 lossy.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 720 wrote to memory of 2672 720 2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe 82 PID 720 wrote to memory of 2672 720 2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe 82 PID 720 wrote to memory of 2672 720 2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:720 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:2672
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
54KB
MD57a63ffed80bb5802fb2628844c8b9ea7
SHA14639e248100b6b35b4d15fcc59680ae4985301f1
SHA256a3a7939319e09071d2e24df628afb511734f5a2a211f52892232f252ae62e6ef
SHA512ab75478ee32588dd395647545c27ff6474fc63674d9b861d4572e582ffeb0f1303e6bf480e93ef7e8d368ba503ff9c1694d3485fbab4622bebaf30ea6b97d1b8