Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
11-06-2024 16:11
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-11_c01888efcc1234efbf23fbc4a062055d_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-11_c01888efcc1234efbf23fbc4a062055d_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-11_c01888efcc1234efbf23fbc4a062055d_cryptolocker.exe
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Size
66KB
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MD5
c01888efcc1234efbf23fbc4a062055d
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SHA1
563f133dbc5534312b8142c60e51b95e9b077fb0
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SHA256
cb0e88fe86dee48bab257cf4c8e3691ba7532ac965ec70cf60110d1ea0a067ae
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SHA512
883175cc91195d7ade7649fe8c54ef1a995bad2d85088668dd472439d916013b56761f3968408e2d1150e360b7e223f1b1e4968b188487229a57fa74cdd9605b
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SSDEEP
1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsijd:BbdDmjr+OtEvwDpjM8Q
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1608-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1608-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c00000001226d-11.dat CryptoLocker_rule2 behavioral1/memory/2232-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2232-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/1608-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1608-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2232-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/1608-1-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/1608-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000c00000001226d-11.dat UPX behavioral1/memory/2232-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2232-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2232 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1608 2024-06-11_c01888efcc1234efbf23fbc4a062055d_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 1608 wrote to memory of 2232 1608 2024-06-11_c01888efcc1234efbf23fbc4a062055d_cryptolocker.exe 28 PID 1608 wrote to memory of 2232 1608 2024-06-11_c01888efcc1234efbf23fbc4a062055d_cryptolocker.exe 28 PID 1608 wrote to memory of 2232 1608 2024-06-11_c01888efcc1234efbf23fbc4a062055d_cryptolocker.exe 28 PID 1608 wrote to memory of 2232 1608 2024-06-11_c01888efcc1234efbf23fbc4a062055d_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-11_c01888efcc1234efbf23fbc4a062055d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_c01888efcc1234efbf23fbc4a062055d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1608 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2232
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
66KB
MD5a0d76f4705e643d835789f1d096c8360
SHA1e9fd236dad7a331cf2d545afe197ad7a28bf2776
SHA2563f35f8b1613ac1fc01dfe002a3edb84b41c6e92870b1e5c05f52ed31121dd439
SHA512b59466fbfc0c811f24eb8beaf5fe27427c18b45b4a6d61456df32347602f407ece5dc95cb6541e347cb5d859396bffbc1835d6c746865c008e799ac553e56bbf