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Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
25/03/2024, 19:52
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe
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Size
387KB
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MD5
868785cb93141ffc6864556e987f8bda
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SHA1
0325c200f759d6888c41ecde160ac056c838fb44
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SHA256
317cf25f20bcc01948ea8c7213d27944445e9400d0183f8ad192ac0ece7e8aee
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SHA512
6c2a3454bff1de5d0d3154f7bd5e8ee9b06403c8a294e951ee1e1cddb7874f4ba9c77a7643dd404a40e7de56f94cac6de3bcaf097713a9965b8724a60240aa07
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SSDEEP
6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXM:nnOflT/ZFIjBz3xjTxynGUOUhXM
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b000000012257-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2176 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 3028 2024-03-25_868785cb93141ffc6864556e987f8bda_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 3028 wrote to memory of 2176 3028 2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe 28 PID 3028 wrote to memory of 2176 3028 2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe 28 PID 3028 wrote to memory of 2176 3028 2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe 28 PID 3028 wrote to memory of 2176 3028 2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3028 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:2176
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
387KB
MD5cfddd519ae58675e0c5f4b6ca013920c
SHA1183fc397caabb2bbb1fa24767572af2ebbd9678f
SHA25634ba3de87ea288bda9fe907175aa595095abf9990a3e69766ed6e32dafb2aaa1
SHA512db4aa10768e3c04b365607e688a81ed437c69dafd6d3f356876e5689d77bdb3a3e2f4735ecc18203f3892eb336b948fc2b60fd678f00f61c96ae5418239d3d8e