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Analysis
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max time kernel
150s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
24/05/2024, 00:42
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-24_ba7cbc1a8dc6e2a58d1d49352df43562_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-24_ba7cbc1a8dc6e2a58d1d49352df43562_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-24_ba7cbc1a8dc6e2a58d1d49352df43562_cryptolocker.exe
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Size
42KB
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MD5
ba7cbc1a8dc6e2a58d1d49352df43562
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SHA1
926e54204553839cea2822232f0a895835374484
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SHA256
6983c69fabd76b78e6b89a8216ae75a29fd474ea4ffac5f26e845e6be8bba83f
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SHA512
575165c068f0cc1655655154c41e86d45a4ce0ed0868e277dd6593e2eb6b3f141ffb6d3f2ceb26d44ac2fd652f07087e69e01897381a76ef837fcfca2dcdeb0d
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SSDEEP
768:XS5nQJ24LR1bytOOtEvwDpj66BLbjG9Rva/yYshNhn:i5nkFGMOtEvwDpjR+viHshNB
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/1740-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d00000001226b-11.dat CryptoLocker_rule2 behavioral1/memory/1740-13-0x0000000000660000-0x000000000066F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1740-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2956-18-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2956-28-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 2 IoCs
resource yara_rule behavioral1/memory/1740-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2956-28-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/memory/1740-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000d00000001226b-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1740-13-0x0000000000660000-0x000000000066F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1740-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2956-18-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2956-28-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2956 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1740 2024-05-24_ba7cbc1a8dc6e2a58d1d49352df43562_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 1740 wrote to memory of 2956 1740 2024-05-24_ba7cbc1a8dc6e2a58d1d49352df43562_cryptolocker.exe 28 PID 1740 wrote to memory of 2956 1740 2024-05-24_ba7cbc1a8dc6e2a58d1d49352df43562_cryptolocker.exe 28 PID 1740 wrote to memory of 2956 1740 2024-05-24_ba7cbc1a8dc6e2a58d1d49352df43562_cryptolocker.exe 28 PID 1740 wrote to memory of 2956 1740 2024-05-24_ba7cbc1a8dc6e2a58d1d49352df43562_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-24_ba7cbc1a8dc6e2a58d1d49352df43562_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-24_ba7cbc1a8dc6e2a58d1d49352df43562_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2956
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42KB
MD556eda08e8a7040a9f9ed03bc661503e9
SHA1d13bb3c5758568442bcafad817ea6b1cf19bbb41
SHA2560658095b8b6ffd11a8e1d5d5ddfc1360bcca1b19a43cfb638cbeb467ed97e28f
SHA5129b8779b8c600018cc6ff1c837abc67fc7c0e9eb4a18a30fc48a8ccfeb981af07ddbc7e84160eb6bd7b90fc54a1968d31487a15384498c1748c6e0e2fe73017eb