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Analysis
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max time kernel
148s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
19/02/2024, 05:54
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe
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Size
71KB
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MD5
de78be6e204a16b6832f0721f8de4faf
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SHA1
61d087e5f2b677a8b801bbd30b9123825c2c388f
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SHA256
013b618ca206d38dfa4999c0c28010cf079921ec2d0a4adfecebbcb737848a17
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SHA512
15550d56bbfe9f9cd3e7f00d0c0f7d6d762295b67963c49d0cf366e5c6323ab06da29502e485c4e6094e6c023ffe7ed99a59fdee5a4a86b271ac782719eec7a9
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SSDEEP
1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU1TB:DW60sllyWOtEvwDpjwF85h
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2968-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0009000000014395-11.dat CryptoLocker_rule2 behavioral1/memory/2968-14-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2160-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/2968-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x0009000000014395-11.dat CryptoLocker_set1 behavioral1/memory/2968-14-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2160-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2160 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2968 2024-02-19_de78be6e204a16b6832f0721f8de4faf_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 2968 wrote to memory of 2160 2968 2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe 28 PID 2968 wrote to memory of 2160 2968 2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe 28 PID 2968 wrote to memory of 2160 2968 2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe 28 PID 2968 wrote to memory of 2160 2968 2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968 -
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
71KB
MD55b97d575556289eabb24ec3e85a40794
SHA1f6d331ae92e446bb71ef7aa58c36eff0d9045d61
SHA25604df6e1f1f64e6acc1de7e2b5249b52c7d066f39a787fbd558d571d93d34da40
SHA51233c13a4c7f54611fadd5f32dcea61077c498651d2f2eaac284feece3978f61705a16dfbc8fef6fdb0bd55e99c7877cf9763ee63352bc7401e1b9ce4059c93739