Analysis
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max time kernel
147s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
06/06/2024, 20:34
Behavioral task
behavioral1
Sample
2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe
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Size
40KB
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MD5
be978a55287044b8de34e04fc66f8f5d
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SHA1
67e2e6cbfaf38ff0d1f3d8d40d9dbd7209a71a22
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SHA256
98fb975e0ac3a09b7ac20748637ea02229f57fb382afb79546bbfc73d433bd5d
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SHA512
a2ba35fa7fb9b1cf892ecf5e45873a7c0f80c7ed4f8ae69519bacbd8ca476eed9fca8a2b5fa4c978a14ce24ffab6a5b7b7b1af89a264ed2eaf7186af6c3bb54f
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYX54I:qDdFJy3QMOtEvwDpjjWMl7TC
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2180-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2180-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000012263-16.dat CryptoLocker_rule2 behavioral1/memory/2932-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2932-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2180-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2180-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000b000000012263-16.dat CryptoLocker_set1 behavioral1/memory/2932-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2932-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/2180-1-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2180-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000b000000012263-16.dat UPX behavioral1/memory/2932-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2932-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2932 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2180 2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe -
resource yara_rule behavioral1/memory/2180-1-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2180-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000b000000012263-16.dat upx behavioral1/memory/2932-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2932-27-0x0000000000500000-0x0000000000510000-memory.dmp upx -
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
description pid Process procid_target PID 2180 wrote to memory of 2932 2180 2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe 29 PID 2180 wrote to memory of 2932 2180 2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe 29 PID 2180 wrote to memory of 2932 2180 2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe 29 PID 2180 wrote to memory of 2932 2180 2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2180 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2932
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD54a5281e441edff7b7e1f88ab52e7d950
SHA196b0d22e96c6ece3f67f9f0278d66c70862b672a
SHA256fc0345414b7a5f7a01f104d665af421aea02665649a2b802b94d2c1fddcb18ce
SHA51253876dddc0d2e91f0c3fb706e25bc2a30599236b2b14d395158d6af4197e58811c632dbcc67d2dd881542b845e87dc0c823831c83e22de512a2ef411f59afe9f