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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
18/03/2024, 21:25
Behavioral task
behavioral1
Sample
2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe
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Size
80KB
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MD5
1c4838eddedbada5ff0db04685b12c36
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SHA1
52cb5fc6db6ca71c527cae5736688e3972dcd8a9
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SHA256
8aa0ac24743e423e0647477a5d793169d43ad5c64c7e6d0563462baa50d58478
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SHA512
39eb65a86417c28d71f8c1515b5835d3103064aa58d8e1d5234b52725ed5a1698f0baf20e17358e805dde242d0a196b7c687de84a4fe2d99bf4cc8599b61a3a6
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1kyJS1Y:zCsanOtEvwDpj+
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2744-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000012252-11.dat CryptoLocker_rule2 behavioral1/memory/2744-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2616-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2744-12-0x00000000023A0000-0x00000000023B0000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2616-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/memory/2744-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a000000012252-11.dat CryptoLocker_set1 behavioral1/memory/2744-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2616-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2744-12-0x00000000023A0000-0x00000000023B0000-memory.dmp CryptoLocker_set1 behavioral1/memory/2616-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral1/memory/2744-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000a000000012252-11.dat UPX behavioral1/memory/2744-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2616-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2744-12-0x00000000023A0000-0x00000000023B0000-memory.dmp UPX behavioral1/memory/2616-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2616 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2744 2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe -
resource yara_rule behavioral1/memory/2744-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000a000000012252-11.dat upx behavioral1/memory/2744-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2616-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2744-12-0x00000000023A0000-0x00000000023B0000-memory.dmp upx behavioral1/memory/2616-27-0x0000000000500000-0x0000000000510000-memory.dmp upx -
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 2744 wrote to memory of 2616 2744 2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe 28 PID 2744 wrote to memory of 2616 2744 2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe 28 PID 2744 wrote to memory of 2616 2744 2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe 28 PID 2744 wrote to memory of 2616 2744 2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2744 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2616
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
80KB
MD59055c2c88b0426ab302a0c4baa17f560
SHA12a1f28fcc88cc00099c3f0e549c8b4327cb7b10a
SHA256ccc8677e27df0b0bab2db140a0944db61c416acec77cd8bde714784c82ed306f
SHA51255f74f4180b6f22e13145852c829e10256e04d211416dff6362e3b1c6f6918cc26727ae80d960381527ed47fc637df5470bcfcd0a44e0d147a042eaacdf59bc2