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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
16/04/2024, 03:58
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe
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Size
60KB
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MD5
9fc938fd1c7e7bea6280780069ec5840
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SHA1
660d447f2bde93ad2c3ffb45657a9fbb6ca34507
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SHA256
5e8077c470f27970eb54b2720e0fd1f0d49dc7beb3d93c4e6833774e5f209375
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SHA512
97e0f74a1da43a977a0428b57a5bc440436f98d4037489e825cd309c8bab624f00fb55462b9af0a36cf572db8117e47ca9780970707f73d54fcb89ee26b9e202
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SSDEEP
768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9Q:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWh
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2880-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000012267-11.dat CryptoLocker_rule2 behavioral1/memory/2880-12-0x00000000006A0000-0x00000000006AB000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2880-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2948-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2948-27-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/memory/2880-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000b000000012267-11.dat CryptoLocker_set1 behavioral1/memory/2880-12-0x00000000006A0000-0x00000000006AB000-memory.dmp CryptoLocker_set1 behavioral1/memory/2880-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2948-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2948-27-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2948 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2880 2024-04-16_9fc938fd1c7e7bea6280780069ec5840_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 2880 wrote to memory of 2948 2880 2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe 28 PID 2880 wrote to memory of 2948 2880 2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe 28 PID 2880 wrote to memory of 2948 2880 2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe 28 PID 2880 wrote to memory of 2948 2880 2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2880 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2948
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD54b2bccdd16b47b94ee55df1578b7caeb
SHA1d816f5434b87fb16c84f383ea67b80539d0eb5b8
SHA256cc5a2905cf7b80dda3bdc375eef65b6aac6f4804610d927569041ef7cc2cc12a
SHA5121da7c693cbc04f0bbd0033b75fd8ad872733ef8313ef7d6a0050f47dbc907b7dc26d3e08d5cb5a5db1bfdd4da1ada4fcb2d354ac59677dd754a3d3bccce3799f