Analysis
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max time kernel
148s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
17-04-2024 10:38
General
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Target
2024-04-17_736c5cec89956ec9901ec4922ab8387c_cryptolocker.exe
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Size
50KB
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MD5
736c5cec89956ec9901ec4922ab8387c
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SHA1
70f75893537d505b6beec78fd633d2186acd8e79
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SHA256
097f548154a9da627bbe0766bac12b9b7677323bed6e8b266785fcbdfb608bc6
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SHA512
f75be1eaf9de83ac966083f31dc2eacb92a7b3271aa06000f5805818e56c56d2cb6a63f5292b243b5b608373eb7061856a7470d294e658b1b07eb490230c4533
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SSDEEP
768:bODOw9UiamWUB2preAr+OfjH/0S16avdrQFiLjJvtP:bODOw9acifAoc+vP
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
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UPX dump on OEP (original entry point) 5 IoCs
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 1 IoCs
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UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-17_736c5cec89956ec9901ec4922ab8387c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-17_736c5cec89956ec9901ec4922ab8387c_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50KB
MD5833492506fde25eb0f5ca135ca0d8381
SHA141f4423735ae8399e4c66a7a64dbf942c1e77a0f
SHA256986cf9fd7d9fca357241ff8341ad528991d5ab9dd87d5beb7662f82405eb38d4
SHA51246e23b7fca94054b068112430004161e810bfa3bd8caf61e192a705e5a5dbe265d92ceecf91a624cfb960f410758e67d45deadd957fb5c0b83537b6c56ca6725
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB