Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
11/06/2024, 05:18
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-11_972bd06e3c368395753d289c1f752ce9_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-11_972bd06e3c368395753d289c1f752ce9_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-11_972bd06e3c368395753d289c1f752ce9_cryptolocker.exe
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Size
67KB
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MD5
972bd06e3c368395753d289c1f752ce9
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SHA1
bbf09004fc873b3cdddd813912c642fc886f5cf6
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SHA256
cb155054e8e605a6ea4966dc665c03f7a37f685be1eb62f69ec7c66559944a03
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SHA512
90131a4ff09e77006c4bd8275caf3f891259b58e82f373431d71ace482e05897a7d9922765e35a2551656c3e394b233c8ce25b322ecf074283311da4812ae99a
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SSDEEP
1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmh85M:V6a+pOtEvwDpjvb
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000c0000000233da-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000c0000000233da-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 2024-06-11_972bd06e3c368395753d289c1f752ce9_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3524 asih.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 912 wrote to memory of 3524 912 2024-06-11_972bd06e3c368395753d289c1f752ce9_cryptolocker.exe 82 PID 912 wrote to memory of 3524 912 2024-06-11_972bd06e3c368395753d289c1f752ce9_cryptolocker.exe 82 PID 912 wrote to memory of 3524 912 2024-06-11_972bd06e3c368395753d289c1f752ce9_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-11_972bd06e3c368395753d289c1f752ce9_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_972bd06e3c368395753d289c1f752ce9_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:912 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:3524
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD572601a3e83044e755e5cb811eecf2840
SHA18f536020f4c50bf1929871465cd1611d4281d858
SHA2568e8de67f2e18697981223a8fc2fe31ede9da987af8372274d8e6d6418d8abdd5
SHA51221f1926ab433f5bca564f05164b638f59b05bed48b4f67c1ff233573022a0190e0424ef8fede0d71319a9627557f4567fb4620b906da7115c6bdedf20b543bf4