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Analysis
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max time kernel
135s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
15/03/2024, 20:34
Behavioral task
behavioral1
Sample
2024-03-15_ba0d127109b15161895ac01353c12084_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-15_ba0d127109b15161895ac01353c12084_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-15_ba0d127109b15161895ac01353c12084_cryptolocker.exe
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Size
108KB
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MD5
ba0d127109b15161895ac01353c12084
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SHA1
4ee6ff93e1aa2f5e8b433a6cb4e16ace1215ff67
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SHA256
5138a02936bda5a9baa4e460fd692c7f938ca180733d6294bad765d89cddd0a8
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SHA512
cc3aa1392ad1b91391227030f9e88a48ff983a6855db3ff35692e127f78b1a18ba15865b66fca8bdd739fd7d9c49fc5d60761a8b11c28a480aa46ce31c9a119b
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn5iF1j6Gkszf8G:1nK6a+qdOOtEvwDpjN
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2084-0-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c000000012233-11.dat CryptoLocker_rule2 behavioral1/memory/2084-14-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_rule2 behavioral1/memory/2160-17-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_rule2 behavioral1/memory/2160-28-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2084-0-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_set1 behavioral1/files/0x000c000000012233-11.dat CryptoLocker_set1 behavioral1/memory/2084-14-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_set1 behavioral1/memory/2160-17-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_set1 behavioral1/memory/2160-28-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/2084-0-0x0000000000500000-0x000000000050F311-memory.dmp UPX behavioral1/files/0x000c000000012233-11.dat UPX behavioral1/memory/2084-14-0x0000000000500000-0x000000000050F311-memory.dmp UPX behavioral1/memory/2160-17-0x0000000000500000-0x000000000050F311-memory.dmp UPX behavioral1/memory/2160-28-0x0000000000500000-0x000000000050F311-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2160 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2084 2024-03-15_ba0d127109b15161895ac01353c12084_cryptolocker.exe -
resource yara_rule behavioral1/memory/2084-0-0x0000000000500000-0x000000000050F311-memory.dmp upx behavioral1/files/0x000c000000012233-11.dat upx behavioral1/memory/2084-14-0x0000000000500000-0x000000000050F311-memory.dmp upx behavioral1/memory/2160-17-0x0000000000500000-0x000000000050F311-memory.dmp upx behavioral1/memory/2160-28-0x0000000000500000-0x000000000050F311-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 2084 wrote to memory of 2160 2084 2024-03-15_ba0d127109b15161895ac01353c12084_cryptolocker.exe 28 PID 2084 wrote to memory of 2160 2084 2024-03-15_ba0d127109b15161895ac01353c12084_cryptolocker.exe 28 PID 2084 wrote to memory of 2160 2084 2024-03-15_ba0d127109b15161895ac01353c12084_cryptolocker.exe 28 PID 2084 wrote to memory of 2160 2084 2024-03-15_ba0d127109b15161895ac01353c12084_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-15_ba0d127109b15161895ac01353c12084_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-15_ba0d127109b15161895ac01353c12084_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2084 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2160
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
108KB
MD538d92834d4f8e561aa13aeba618d082f
SHA1d68d757c624f68521144348bd4574acc8beeb117
SHA25683735d98368c5805eb6c5e46f0b2c183fea915f4b95a92b4d68a1c383347df4e
SHA512248d96ebb355624c10c89e17551bda44cfb7e6867e1fbcf268a238d0acc515a7dcbcf9ff629db00f28df9c1bbbfa88286096bc05bc77b8bc4c367975d215241e