Analysis
- 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
13/06/2024, 09:23
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2024-06-13_64c7d3fd185adc028a8d18d642dc1969_cryptolocker.exe
Resource
win7-20240611-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-13_64c7d3fd185adc028a8d18d642dc1969_cryptolocker.exe
Resource
win10v2004-20240508-en
6 signatures
150 seconds
General
- Target 2024-06-13_64c7d3fd185adc028a8d18d642dc1969_cryptolocker.exe
- Size 46KB
- Sample240613-lcvvjssfmc
- SHA256 495eb9fdf200301caae989724f0cbd213ee18de4feff87db1cd4d1e60b4dae25
- MD5 64c7d3fd185adc028a8d18d642dc1969
- SHA1 a86c1b73124adfd15e5d1f45cfa976528ef1b655
- SHA512 9b06bde7f2d7adf8e8a333b087f1c38d5d7617cb2bcd4fcf795980d441901fd394b66fc664e728ee409278714af2900f984a862643cbb5e9b45daa57433b1d5d
- SSDEEP 768:y6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjbXOQ69zbjlAAX5e9zrn:y6QFElP6n+gMQMOtEvwDpjbizbR9Xwzr
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023278-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023278-12.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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation 2024-06-13_64c7d3fd185adc028a8d18d642dc1969_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 2024 asih.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4220 wrote to memory of 2024 4220 2024-06-13_64c7d3fd185adc028a8d18d642dc1969_cryptolocker.exe 82 PID 4220 wrote to memory of 2024 4220 2024-06-13_64c7d3fd185adc028a8d18d642dc1969_cryptolocker.exe 82 PID 4220 wrote to memory of 2024 4220 2024-06-13_64c7d3fd185adc028a8d18d642dc1969_cryptolocker.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-13_64c7d3fd185adc028a8d18d642dc1969_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_64c7d3fd185adc028a8d18d642dc1969_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4220 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2024
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\asih.exe
- Size 47KB
- SHA256 7dcf7b06733b03e70b65b3bf7b6e0f249b058635f14ded25772279c69c599732
- MD5 97dc7fc5fc9c9ba4c3373520f31df19f
- SHA1 14edd704d68e1742a4f6b42480f58c5bbf10410c
- SHA512 4c4b30361e8485fed60f5d1912865d4613dca36b022c7217ffafd7ba92055c61f8add5f7710cfc06ea928d0c509f6f5b2fac674c91ac1705aacd9e96c9793f0b
- SSDEEP 768:y6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjbXOQ69zbjlAAX5e9zr7l:y6QFElP6n+gMQMOtEvwDpjbizbR9Xwzd
- MD5 SHA1 SHA512 SSDEEP