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Analysis
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max time kernel
149s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
21/04/2024, 03:29
Behavioral task
behavioral1
Sample
2024-04-21_0aea1a6000351510a704fe6658a01459_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-21_0aea1a6000351510a704fe6658a01459_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-21_0aea1a6000351510a704fe6658a01459_cryptolocker.exe
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Size
71KB
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MD5
0aea1a6000351510a704fe6658a01459
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SHA1
ff86064d47a88107b804994abe0d3da67e449139
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SHA256
065287223427832c6707b2ecb48721c013abf2cae3108a2d97850eae3effc8fd
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SHA512
0da2062da2ed4e751a54f42db353a36852f32514b41fe67379a37f589f9f3190a48e031f7d43f75ce4e0ee95209a539522d5d2ac23e32395af39acfa624f2dd7
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SSDEEP
1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9S:C4Q2c94OtEvwDpj4H8zH
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2192-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b00000001224f-11.dat CryptoLocker_rule2 behavioral1/memory/2192-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3032-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3032-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/2192-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3032-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3032-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/2192-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000b00000001224f-11.dat UPX behavioral1/memory/2192-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/3032-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/3032-26-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 3032 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2192 2024-04-21_0aea1a6000351510a704fe6658a01459_cryptolocker.exe -
resource yara_rule behavioral1/memory/2192-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000b00000001224f-11.dat upx behavioral1/memory/2192-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/3032-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/3032-26-0x0000000000500000-0x0000000000510000-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 2192 wrote to memory of 3032 2192 2024-04-21_0aea1a6000351510a704fe6658a01459_cryptolocker.exe 28 PID 2192 wrote to memory of 3032 2192 2024-04-21_0aea1a6000351510a704fe6658a01459_cryptolocker.exe 28 PID 2192 wrote to memory of 3032 2192 2024-04-21_0aea1a6000351510a704fe6658a01459_cryptolocker.exe 28 PID 2192 wrote to memory of 3032 2192 2024-04-21_0aea1a6000351510a704fe6658a01459_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-21_0aea1a6000351510a704fe6658a01459_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-21_0aea1a6000351510a704fe6658a01459_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2192 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3032
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
71KB
MD5baa96763b4c8bfce65adeecd6f605cb1
SHA1a7aa6cbe2a3a339f482428ee9ef8ba2a0f9ab775
SHA25656515b4cd0406d1edd5f3dab88a66153d4b8c7f5831170e33e3eb4e715e26b7d
SHA51201f0526b203e2cfd3d56ad22ee151d87bfd08c5b62aead2ece9f5998c25cd875584d7b731174da4c8294b6ff84f8d00476bcdbadc7f109b3405f1b236a90cc24