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Analysis
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max time kernel
147s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
19/01/2024, 08:46
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe
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Size
38KB
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MD5
4dfde65883622886081b56a2c140549e
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SHA1
e10058f757674ad20805b1453df79f9974a42c12
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SHA256
9e8d7808d711f34c396d6252896d7522b961f2e328de7b0ee6b25d78af259911
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SHA512
94f6e68c0bf8c45289dfef43bdad9028acdf52aa76c32d983aab2f70bc22410413a63d88dc5458178a04ca191735bf50d2db5cedd1c497327942560b16a6edd5
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SSDEEP
768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvgpnG:m5nkFNMOtEvwDpjG8hgpG
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2536-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b0000000133a9-11.dat CryptoLocker_rule2 behavioral1/memory/2536-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2324-17-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2536-13-0x0000000000630000-0x000000000063E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2324-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/2536-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2536-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2324-17-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2324-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/memory/2536-0-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000b0000000133a9-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2536-15-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2324-17-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2536-13-0x0000000000630000-0x000000000063E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2324-27-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2324 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2536 2024-01-19_4dfde65883622886081b56a2c140549e_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 2536 wrote to memory of 2324 2536 2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe 28 PID 2536 wrote to memory of 2324 2536 2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe 28 PID 2536 wrote to memory of 2324 2536 2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe 28 PID 2536 wrote to memory of 2324 2536 2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-19_4dfde65883622886081b56a2c140549e_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2536 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2324
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
39KB
MD57246a51d4bc3158ada592f1ee54bc0d9
SHA146a3e902617540804d27ba530bf5ae0670262976
SHA2560d90f203a3c14b68be955c99e061939b09681eaa3f6a907e7bc6459a2fd1c8db
SHA512bd7ab9e9031aa77c6a550ce034a2cf08119dd83034cf84255f9171d15078780b9b743fe2257ffce492aad813bcca0851db7c9f42a37b7bb1a5e4711ee0482510