Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
19-02-2024 08:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-19_00fe59029a0eaa9bcac5a3e0f03eb2d3_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-02-19_00fe59029a0eaa9bcac5a3e0f03eb2d3_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-02-19_00fe59029a0eaa9bcac5a3e0f03eb2d3_cryptolocker.exe
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Size
53KB
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MD5
00fe59029a0eaa9bcac5a3e0f03eb2d3
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SHA1
faa7497d325ff922b6e75cb01d275dbf6f0a141d
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SHA256
8e25ec1b4dd3c1fb440f6535de1d794a2abc3f0c327f540be6211b168ce429a1
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SHA512
9d515fdb5198400556b3e0bab126f54b4672ee1ffa879a7dc9d397f6c1a1dae0efe4e07fd2e739daa1ded1ff729101f3be7c774dc213e453570514e6b231ef1f
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz752:6j+1NMOtEvwDpjr8oxEn2
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2108-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2108-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000012252-14.dat CryptoLocker_rule2 behavioral1/memory/2024-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2024-25-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2108-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2108-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000b000000012252-14.dat CryptoLocker_set1 behavioral1/memory/2024-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2024-25-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2108-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2108-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000b000000012252-14.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2024-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2024-25-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2024 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2108 2024-02-19_00fe59029a0eaa9bcac5a3e0f03eb2d3_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 2108 wrote to memory of 2024 2108 2024-02-19_00fe59029a0eaa9bcac5a3e0f03eb2d3_cryptolocker.exe 28 PID 2108 wrote to memory of 2024 2108 2024-02-19_00fe59029a0eaa9bcac5a3e0f03eb2d3_cryptolocker.exe 28 PID 2108 wrote to memory of 2024 2108 2024-02-19_00fe59029a0eaa9bcac5a3e0f03eb2d3_cryptolocker.exe 28 PID 2108 wrote to memory of 2024 2108 2024-02-19_00fe59029a0eaa9bcac5a3e0f03eb2d3_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-19_00fe59029a0eaa9bcac5a3e0f03eb2d3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-19_00fe59029a0eaa9bcac5a3e0f03eb2d3_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2108 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2024
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
53KB
MD5a4f78ce460173ae03cac552cce398dfd
SHA15aabd381a4595f1035979e5cd1587f04c43afa20
SHA2563be7d5df90fad8b8aa5c69cd5c5236ca87aecc1f0065eebaf1b6f27377d781e4
SHA51220dedafed180aec569b554725fc123c65d0082a96a5a52c0a8c6311041c1340f842730371b221822c2d2c4fe94a1e77e0d6cc4f41fa12e963baef854ee9d3352