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Analysis
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max time kernel
149s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
22/02/2024, 17:34
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe
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Size
146KB
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MD5
471d53fe701869fedf68910e1d0db319
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SHA1
87c5c57ebe8a20d750aad16fda26db3fd572511c
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SHA256
d06a3c727ddcb990176927874132dcdd6143cff44695f606540cc9d7c12041b0
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SHA512
97a955ec6820dcf1e2d79fedafc44918dafd9d0abcf968628c906a5e3ee1002884df4782ec99c45587316572ec249d13ad596682c649d84a5eee3274ec3be8f7
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SSDEEP
1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbPlooHPPFyL:V6a+pOtEvwDpjt22a
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b00000001224c-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000b00000001224c-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 1784 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1592 2024-02-22_471d53fe701869fedf68910e1d0db319_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 1592 wrote to memory of 1784 1592 2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe 19 PID 1592 wrote to memory of 1784 1592 2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe 19 PID 1592 wrote to memory of 1784 1592 2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe 19 PID 1592 wrote to memory of 1784 1592 2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe 19
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1592 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:1784
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
147KB
MD5cff46c00097feb7cf07c4da514a8efc4
SHA1b3af3fef36d88b9476be66a45deaf874439a61ba
SHA25608954d9d0228519bc61ea8f51cca42a7dae8c63bfd14ec4242e46d1a8f6b9c7e
SHA5122f75c9f156e41b502b715891f5490ae0587a8f30720b2d7664eba5b61859558005b4b92e33ac6121404187b2c4e35f40eb0a828a49874903ab1f8a5e1028a696