Analysis
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max time kernel
144s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
14-06-2024 03:28
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-14_91f1861db4e8b6e1264d6b7a19c86076_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-14_91f1861db4e8b6e1264d6b7a19c86076_cryptolocker.exe
Resource
win10v2004-20240611-en
General
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Target
2024-06-14_91f1861db4e8b6e1264d6b7a19c86076_cryptolocker.exe
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Size
86KB
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MD5
91f1861db4e8b6e1264d6b7a19c86076
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SHA1
2529ef0dad22de02d184cfea70eebb2c8ac4ef42
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SHA256
10639797fcd909ff7f71891eb1ced5c775b3301a2962947ba18a58d5118abac1
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SHA512
c4e2fbe94a067c02dc3902a279afde46bff75e061ea0bad627179d73bbdd628c90882d1111cdf4295b61acc48415a6e7e723af550bd34efe4ef0cb011c99d41a
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SSDEEP
1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrC+5:TCjsIOtEvwDpj5HE/OUHnSM/
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/1996-8-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000012280-11.dat CryptoLocker_rule2 behavioral1/memory/2276-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2276-24-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/1996-8-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a000000012280-11.dat CryptoLocker_set1 behavioral1/memory/2276-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2276-24-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2276 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1996 2024-06-14_91f1861db4e8b6e1264d6b7a19c86076_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 1996 wrote to memory of 2276 1996 2024-06-14_91f1861db4e8b6e1264d6b7a19c86076_cryptolocker.exe 28 PID 1996 wrote to memory of 2276 1996 2024-06-14_91f1861db4e8b6e1264d6b7a19c86076_cryptolocker.exe 28 PID 1996 wrote to memory of 2276 1996 2024-06-14_91f1861db4e8b6e1264d6b7a19c86076_cryptolocker.exe 28 PID 1996 wrote to memory of 2276 1996 2024-06-14_91f1861db4e8b6e1264d6b7a19c86076_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-14_91f1861db4e8b6e1264d6b7a19c86076_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-14_91f1861db4e8b6e1264d6b7a19c86076_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2276
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
86KB
MD57e11b472f5c489d3c5c2fc742c8629c1
SHA189f635162c90c026a1cb56ca82aa162548b5ba6c
SHA256ee57a83e4a7bd82bd798c3ca5be0bea3fbb5ad57d5c6ce59d9c9fcea42c109dd
SHA512546a628de1b3f5de0ef833d2a1d37134c1587d745d76277c3fd8d718201124146062d6928f9e4a3643cfed87a38c55cb187ab6a9939631ca14a6765f0ce382dd