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
13-06-2024 12:37
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe
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Size
37KB
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MD5
750e223990dce61bee55f156e58d39c6
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SHA1
fb642c3d909eec39988202a4e89cfe6ec6ccc480
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SHA256
912a8453b6205de6ff53d4cb0200c7c1d39f591ef450c11d53d071ada9ef160c
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SHA512
60e471a8b34f423bc4549c56be9146a05fd8ceaeabf0e2b2c5777c603a2f9baba1ebec602c34ed2136b66b4d201b96b4abd52ae5c0e57a12c86ab577bd2f2a20
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SSDEEP
768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4XYt:fT+hsMQMOtEvwDpjoIHIt
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\misid.exe CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\misid.exe CryptoLocker_set1 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation 2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe -
Executes dropped EXE 1 IoCs
Processes:
misid.exepid process 388 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
Processes:
2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exedescription pid process target process PID 4184 wrote to memory of 388 4184 2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe misid.exe PID 4184 wrote to memory of 388 4184 2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe misid.exe PID 4184 wrote to memory of 388 4184 2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe misid.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4184 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:388
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
37KB
MD58134872cbbc5197cddc08986b30ef99e
SHA12482d977db5112ffd15c6122891ed117f8052eb3
SHA2562a95513d67b737d780c7a3e55869f885fc6be6ee94034019501496d431257ca5
SHA5124e27499691959ba44cec1319d1e1ef308c2771b08fea8ea29a5780fdb7fd26d19b212471430eaf776c287260178dadc70e0a09f69610b6b6bfb8e2302d492dc7