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Analysis
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max time kernel
150s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
30/06/2024, 10:32
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe
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Size
40KB
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MD5
8c13c500a9c5070e5bae580eefba2874
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SHA1
e7d108b687a682e7ac9040ca59a7090f68c9de49
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SHA256
cde779c82acf8b6b3c42bf5f25de458036dbb274370ff26e3b20355528352e95
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SHA512
44bd18d9f8b48c7194d10679abbf7cfacf884364cf925960f7ed8df2c9ab11ff329c72bdad0e85a22ebcb5e0c4a6711e799e3fe77390fa910f7a8691d658d938
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SSDEEP
768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0WZy3:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XZ
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0008000000022f51-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x0008000000022f51-12.dat CryptoLocker_set1 -
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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 852 hurok.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 4568 wrote to memory of 852 4568 2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe 81 PID 4568 wrote to memory of 852 4568 2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe 81 PID 4568 wrote to memory of 852 4568 2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4568 -
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Executes dropped EXE
PID:852
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD5efae01b8a31cecae4b49adc811cf66aa
SHA1efcd3647e734329f2d927b4dd28f8260bbcf53d3
SHA256856639ad285e9c74342ff30898fd8355b7cf2f30c890e5d9fea994edb58c89fe
SHA5125e22e05d86b5fd1e3193c06cdb583f9192b6892fc4ecd602ec8477e194647e1420fa1efee8e07b25d9d9109a3afd813b568f743900dee1c92be3fde6bcb03a1f