Analysis
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max time kernel
150s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
01/06/2024, 20:11
Behavioral task
behavioral1
Sample
2024-06-01_9204c24953765fefad0610b8672c6b5d_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-01_9204c24953765fefad0610b8672c6b5d_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-01_9204c24953765fefad0610b8672c6b5d_cryptolocker.exe
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Size
95KB
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MD5
9204c24953765fefad0610b8672c6b5d
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SHA1
dd64f20ee9124c2ed2177d43cc63614991d7c44f
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SHA256
c30230695ee2532622f5d3baac2f6a9c5eec7071d3fd14f526e6a60223a23fd5
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SHA512
92d64d683cc110a86bf39a03a954f650cd13da1ff821d38eb579393dd20d53b05591a246cb4c8f4cf27c3c8713c4e5e3ecd39186e2effb5766941e80aac30173
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/k6:zCsanOtEvwDpjBt
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2168-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000015a2d-11.dat CryptoLocker_rule2 behavioral1/memory/2168-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2252-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2252-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2168-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000b000000015a2d-11.dat CryptoLocker_set1 behavioral1/memory/2168-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2252-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2252-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/2168-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000b000000015a2d-11.dat UPX behavioral1/memory/2168-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2252-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2252-26-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2252 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2168 2024-06-01_9204c24953765fefad0610b8672c6b5d_cryptolocker.exe -
resource yara_rule behavioral1/memory/2168-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000b000000015a2d-11.dat upx behavioral1/memory/2168-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2252-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2252-26-0x0000000000500000-0x0000000000510000-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 2168 wrote to memory of 2252 2168 2024-06-01_9204c24953765fefad0610b8672c6b5d_cryptolocker.exe 28 PID 2168 wrote to memory of 2252 2168 2024-06-01_9204c24953765fefad0610b8672c6b5d_cryptolocker.exe 28 PID 2168 wrote to memory of 2252 2168 2024-06-01_9204c24953765fefad0610b8672c6b5d_cryptolocker.exe 28 PID 2168 wrote to memory of 2252 2168 2024-06-01_9204c24953765fefad0610b8672c6b5d_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-01_9204c24953765fefad0610b8672c6b5d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-01_9204c24953765fefad0610b8672c6b5d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2168 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2252
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
95KB
MD530b5fa02da68778b02dce024a7625afc
SHA11bdc511905dc0fc03ef3b30730d1ac65c917e204
SHA2567ba2cf661aecad2d5836c8abfd409dbbc5036b1074a2ba612a61167bbc43c1c6
SHA5122cf84b35b637c898ab4e80707964616e081c498e26b9c0b8f4a28975f60213c97afa90fe99fe46a7366c29fef0d91876e07aa830600df853ccff6ce47392ab39