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Analysis
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max time kernel
145s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
01/02/2024, 23:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe
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Size
39KB
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MD5
ae2b9ace0ac16f0c19beb779c41c0d54
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SHA1
f4c2fc92b289205e8c56f464e346935ff80f11cd
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SHA256
4ed7e001055083f42011d5f4244ebd406af5ee22d7f8837dd4ac4e5e00586bb3
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SHA512
a1ceab8f277e2a59e0c9748e5e343941d9f178006a76337f97256a98a2fb2775a65cb10f1cfc21b13511c97eca8b1de2aab219d2327f95cb9dee503c90448720
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SSDEEP
384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbZM+ih:bAvJCYOOvbRPDEgXrNekd7l94i3p+F
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x00070000000231f5-12.dat CryptoLocker_rule2 -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation 2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation demka.exe -
Executes dropped EXE 1 IoCs
pid Process 1424 demka.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 4184 wrote to memory of 1424 4184 2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe 85 PID 4184 wrote to memory of 1424 4184 2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe 85 PID 4184 wrote to memory of 1424 4184 2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4184 -
C:\Users\Admin\AppData\Local\Temp\demka.exe"C:\Users\Admin\AppData\Local\Temp\demka.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
PID:1424
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
39KB
MD5ee0c0f1c9fcce70973eb07a7148cf264
SHA1b1e937d1ecafa14e0e29dfcc138efbadfaf7e956
SHA256a54c6efc18fdc46c2574d6819b9081553f14e3629fbf4e6602023037896a4bda
SHA512c71484af7868561d11cb5e2a03d13032ad2be6e602cdd44378a0ac9fb8b40a0a387c3ec7fad73068db51ca2ad0dc655ea9f7a22659187b6a6c47de7447c7f4ed