Analysis
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max time kernel
143s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system -
submitted
22/02/2024, 15:45
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe
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Size
46KB
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MD5
94dbcba8ecef696b74ca20ad8302d53e
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SHA1
8079e8ba19a3c387b73ff96210049f643555b85e
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SHA256
ef4bde3f97d8af246fb2bafe7ef0b2a1f0440f5f986c46b1fc14d777830b8a48
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SHA512
59c38c51522fd261345d1ac6b6be65fe0896508dce2f39b88c2ec0c54ccbc666cbfb2555ef93354152f668f6728270db77b26b62bd5b3e626ffa420c4bf25246
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SSDEEP
768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1ws2:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1k
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0006000000023129-13.dat CryptoLocker_rule2 -
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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation 2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1544 misid.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 4504 wrote to memory of 1544 4504 2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe 86 PID 4504 wrote to memory of 1544 4504 2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe 86 PID 4504 wrote to memory of 1544 4504 2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4504 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1544
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46KB
MD511c0fa8df0e7d92d749ba5e2542976f2
SHA1425618e77e8a0e94f70596d5a76dbaaa6d811c46
SHA2569c43b4b8f2266a841ab6f547dde5319ade21a2a1f0f8b8268edb894d8af56193
SHA512984f93aac4cd85557343feb39ea0e827c84a8dee9078baba5f9d884bb38db8b3388e943685a0e95ef643a6d9461a83f6cb0156e39fad8c8a929c2000c60fe228