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
01/06/2024, 18:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe
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Size
62KB
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MD5
4994043445cf25f76db6b303ed9c793d
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SHA1
492494ee0b48aaca703bf2c42914492f5592d3aa
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SHA256
c236bcf482ce4edaff44e683080d560b02b78dc02a7a6ab4acf7e5b4334d07cf
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SHA512
6feb9e5332adf3f1542876ae418dd50fc5d8c211065585d641eda3cc617ca3466ccb50ec2d9d0fad74541a7842f5041e3e3210bf6b5622b735c91c8abac56037
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SSDEEP
768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9P:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWy
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2920-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a0000000144e9-11.dat CryptoLocker_rule2 behavioral1/memory/2920-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2148-25-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/2920-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a0000000144e9-11.dat CryptoLocker_set1 behavioral1/memory/2920-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2148-25-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2148 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2920 2024-06-01_4994043445cf25f76db6b303ed9c793d_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 2920 wrote to memory of 2148 2920 2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe 28 PID 2920 wrote to memory of 2148 2920 2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe 28 PID 2920 wrote to memory of 2148 2920 2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe 28 PID 2920 wrote to memory of 2148 2920 2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2920 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2148
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
63KB
MD58e5fe5773097644c570988087a16e4f1
SHA12bff68b6a8aea7f834fa605efc7cba6c240477d7
SHA2569aa70f5ce91b370c9baddf232f5549299ced6f28ed366f58f62c1c418b5d99d6
SHA512891c474cbaac04e3c6993ecf032626002d7869e4c9c5feea80da062ca9e7a224f81f2cd6daecc7e396180c17378d7992ddb6c1aebdb4989b55e39148e8f65fe0