Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
02/06/2024, 04:49
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe
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Size
68KB
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MD5
f8034bf0d6cd9d12f446f59d39398f9f
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SHA1
ee37c8f2ae71cd7431f5ac3036c4bf9153c6c7dd
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SHA256
046041af54c6fdc086d59eec0f407fe7e78c4cdb9328ba1f25fd61ccf266f146
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SHA512
9dee3f0066460e74dee0361e5fa7d5a6b02890c9095607462153c0e80b5d36fdd8933d432653fb7adfb206fdba14ceb33f561c8b80675db2b78b72ba2fb0f559
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpE0P/xFIO:6j+1NMOtEvwDpjr8ox8UDEpN/jP
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2932-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a0000000144e9-11.dat CryptoLocker_rule2 behavioral1/memory/2932-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2640-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2640-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2932-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a0000000144e9-11.dat CryptoLocker_set1 behavioral1/memory/2932-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2640-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2640-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2932-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000a0000000144e9-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2932-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2640-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2640-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2640 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2932 2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_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 2932 wrote to memory of 2640 2932 2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe 28 PID 2932 wrote to memory of 2640 2932 2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe 28 PID 2932 wrote to memory of 2640 2932 2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe 28 PID 2932 wrote to memory of 2640 2932 2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2932 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2640
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
68KB
MD5556bba887b30ec8e49ee07e64f6b38ee
SHA18462746782b0f26aaef4ef51cb3d3166d6505284
SHA256c0f7662f4ae1be716dbae7fa0654e576ae5c3daad31d046ef6600386e7006ad1
SHA512cd3a053f7ff31125af3c8367401d82cb3046e6f950dd42af0a9bdcd88fda534bcbae1b0171f7aaedd65f092ef6072f031867f6cbc147605dba54b25372850ed1