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Analysis
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max time kernel
149s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
01/06/2024, 17:47
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe
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Size
69KB
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MD5
0d90a7c867594313410030877ff5357d
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SHA1
beba6930251e743a5395258a6f666da4a83151a5
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SHA256
e2b0754978a0afbb6f9899c253609fc454fb29112e617307f29611ae40fb176e
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SHA512
b57d1c17a6a4ac8d8a5492856791a7ede96476a3430db49b5751be14c4cbe8e9b2f2ed7d1157fa7115f4ebb2f6b4793956878265331520086e7fd85ab48a9b1f
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SSDEEP
768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dA:i5nkFGMOtEvwDpjNbwQEI8UZDW
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1028-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c000000012263-11.dat CryptoLocker_rule2 behavioral1/memory/2844-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1028-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2844-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/1028-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1028-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2844-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/1028-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000c000000012263-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2844-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1028-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2844-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2844 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1028 2024-06-01_0d90a7c867594313410030877ff5357d_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 1028 wrote to memory of 2844 1028 2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe 28 PID 1028 wrote to memory of 2844 1028 2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe 28 PID 1028 wrote to memory of 2844 1028 2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe 28 PID 1028 wrote to memory of 2844 1028 2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1028 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2844
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
69KB
MD540e4ab965e15179958ce0314474d9d26
SHA173f52ed61a8190241ab8e01e3680860a6ef194fe
SHA256c0d88da2f58f80be174a6bffe7e666375251bd4c0a3cff693dd661a2a1a12ca6
SHA512f0b4dd85fe0fd93f03911014a2c6a943f939c39c4da17e8c62a56bcb7e0b273cd91627b7232fc5c6eb296fd0a15f95ad585d8553315b232dc7fd4e222d7a2ad4