Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
24-05-2024 04:45
Behavioral task
behavioral1
Sample
2024-05-24_d5338df66edbcc3b8788b40fc723469d_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-24_d5338df66edbcc3b8788b40fc723469d_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-05-24_d5338df66edbcc3b8788b40fc723469d_cryptolocker.exe
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Size
71KB
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MD5
d5338df66edbcc3b8788b40fc723469d
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SHA1
41778795cee0a2532fe9098a8a8e86544edbbd2c
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SHA256
ff0bde34d1deaa5d7914732a2fcad43b7a3955ce99958be76738a556be25f9a6
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SHA512
a4d4483e5a9e8afd6566976f25996189da9625b1eeaae7ffb14a400935e28cd4059261d82fa641b37e504e454815b63845d9e40998a99fdd18976798af8071bc
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SSDEEP
1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9I+:C4Q2c94OtEvwDpj4H8zk
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/3028-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c00000001565d-11.dat CryptoLocker_rule2 behavioral1/memory/3028-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2592-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 2 IoCs
resource yara_rule behavioral1/memory/3028-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2592-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral1/memory/3028-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000c00000001565d-11.dat UPX behavioral1/memory/3028-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2592-26-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2592 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 3028 2024-05-24_d5338df66edbcc3b8788b40fc723469d_cryptolocker.exe -
resource yara_rule behavioral1/memory/3028-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000c00000001565d-11.dat upx behavioral1/memory/3028-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2592-26-0x0000000000500000-0x0000000000510000-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 3028 wrote to memory of 2592 3028 2024-05-24_d5338df66edbcc3b8788b40fc723469d_cryptolocker.exe 28 PID 3028 wrote to memory of 2592 3028 2024-05-24_d5338df66edbcc3b8788b40fc723469d_cryptolocker.exe 28 PID 3028 wrote to memory of 2592 3028 2024-05-24_d5338df66edbcc3b8788b40fc723469d_cryptolocker.exe 28 PID 3028 wrote to memory of 2592 3028 2024-05-24_d5338df66edbcc3b8788b40fc723469d_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-24_d5338df66edbcc3b8788b40fc723469d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-24_d5338df66edbcc3b8788b40fc723469d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3028 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2592
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
71KB
MD56516c72398ac85892f7fcf024a5f0d36
SHA1fa6afc50e9048825b3b15d2594640324bc928032
SHA256a5548596e67d11e5a4eea5390bbe4fdd1534270c57d3f981d38655b125c09d93
SHA512f86a63d726fcf499ce394be268c1ebf23dc25e495bf20ba5fc394ff9d5d20a7959fc625d8671954d4f8bcb115eba9e101fbb5d7b90ac0601e911a2bcc258743a