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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
30/05/2024, 12:36
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe
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Size
61KB
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MD5
f79691dece111eddd34fb001718b7452
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SHA1
ffa62e7fb9ce6c84e7a522985be63229f7b3c254
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SHA256
1c5e131277676c4d465782da0459dab5d3a2a4a7ed779f4d6dd61a755de35857
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SHA512
9b64e8d256a43759d9c4e5906ea8b40288984a8b63d8d3db761882a0a2a0c285eaa3a0b4d7d7b960c987ef21ec1d46862ac8644f6514e4541b13d1c2fab383e4
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SSDEEP
1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsi0:BbdDmjr+OtEvwDpjM8l
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/3012-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c00000001228a-11.dat CryptoLocker_rule2 behavioral1/memory/3012-13-0x0000000001DD0000-0x0000000001DE0000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3012-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2244-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 2 IoCs
resource yara_rule behavioral1/memory/3012-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2244-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/3012-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000c00000001228a-11.dat UPX behavioral1/memory/3012-13-0x0000000001DD0000-0x0000000001DE0000-memory.dmp UPX behavioral1/memory/3012-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2244-26-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2244 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 3012 2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe -
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 3012 wrote to memory of 2244 3012 2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe 28 PID 3012 wrote to memory of 2244 3012 2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe 28 PID 3012 wrote to memory of 2244 3012 2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe 28 PID 3012 wrote to memory of 2244 3012 2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3012 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2244
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
61KB
MD571aa54c800f57a0797de7e6c23102b38
SHA1bd6da2a2409130167d61b40c3f31066169fe9ffc
SHA2566c46a48ee3891e608728e88c9a441c30c48a287ffcf7bf1e86d2a6bd69abbbe2
SHA51244a1e0f1ec1413a2fbc16edaa9e9086d51889ec32df21f83da348ba7daa81d056964325a9fd008de851188efb8649c83b6daaaf6385d641cc23ceb29a1ce9535