Analysis
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max time kernel
149s -
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_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe
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Size
42KB
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MD5
e16b4d3ea88080431fbdefbedf57f155
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SHA1
41c013b8f21bb07505aa3da8e05722494a45a29b
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SHA256
be08bb522045dd6dbf020ea65b7457d1fb0387edca2e8d39a8dadc06449af456
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SHA512
eabb7adc92d9edc40701db4fddde45312f2445c920ec2a0adb031cbc9cfe4edde2464e210ef4087ea02f47649ce1004521a4fe58f7fda32761b0eb064667532c
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SSDEEP
768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqAH:bCDOw9aMDooc+vAqAH
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2088-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000013420-11.dat CryptoLocker_rule2 behavioral1/memory/2088-15-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2192-25-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2192 lossy.exe -
Loads dropped DLL 1 IoCs
pid Process 2088 2024-06-02_e16b4d3ea88080431fbdefbedf57f155_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 2088 wrote to memory of 2192 2088 2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe 28 PID 2088 wrote to memory of 2192 2088 2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe 28 PID 2088 wrote to memory of 2192 2088 2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe 28 PID 2088 wrote to memory of 2192 2088 2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2088 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:2192
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42KB
MD5ea21a9f2322f1025f08a6fdca575b77c
SHA164abf3bfb99f657402bf259c0cc736ad77deca4f
SHA25656a39ca7c530120002aafdae16e390569aa860e95c7779d7d41a142edbd13c34
SHA5128ed2f74f34c1053280554a333512d89c5f76887bb87628abb6849301230c750b3ca7b20d5acf9029dc39874508f7b450ee39a2193e82e34d85280672adf2071d