Analysis
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max time kernel
148s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
27/05/2024, 18:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe
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Size
41KB
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MD5
61c544f09fa0e68d04821bac0b8d8c5f
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SHA1
999dc5534cc80a9bc397caa335ddd4bbf85f22ee
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SHA256
75df42b13349bdc574bfa8fb83c1a7788895f15d13f78233db02a0e7d80b9260
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SHA512
13e604172d5dd83e65424f2ea39f6f0fde621261f04c41e566bc0c29e70e6d7aeffd083d3dc812b369616bdad587dd09cba706d280576a89bf071ffe50edc5a0
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SSDEEP
768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuDkrj:ZzFbxmLPWQMOtEvwDpjLeJAsKcij
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000c00000001269e-11.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 3052 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2088 2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_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 3052 2088 2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe 28 PID 2088 wrote to memory of 3052 2088 2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe 28 PID 2088 wrote to memory of 3052 2088 2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe 28 PID 2088 wrote to memory of 3052 2088 2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2088 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3052
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD57e8f198120ff6ac44adc22f948157b4c
SHA14926283e83fb82b3c9783c2484e7e4112277531c
SHA25658f5cfe8c86997acc0bed2a1483340549629f8e534904a734f9fb4a4aa1a5992
SHA5122ba8e69e9249f6ca09b3bcfada47592a7b7322343a173ad7724f99ec7becc4eb5477a1171d323b412ac41ed5f50896520ac307ba0ea43e6f85b967b91e39a0be