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Analysis
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max time kernel
89s -
max time network
93s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
12/02/2024, 17:59
Behavioral task
behavioral1
Sample
hellokitty/NTRUEncrypt/autogen.sh
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
hellokitty/NTRUEncrypt/autogen.sh
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
hellokitty/NTRUEncrypt/doc/UserNotes-NTRUEncrypt.pdf
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
hellokitty/NTRUEncrypt/doc/UserNotes-NTRUEncrypt.pdf
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
hellokitty/NTRUEncrypt/src/ntru_crypto_ntru_encrypt.js
Resource
win7-20231129-en
Behavioral task
behavioral6
Sample
hellokitty/NTRUEncrypt/src/ntru_crypto_ntru_encrypt.js
Resource
win10v2004-20231222-en
General
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Target
hellokitty/NTRUEncrypt/src/ntru_crypto_ntru_encrypt.js
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Size
50KB
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MD5
e980116023c11cf26ef905db653542ce
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SHA1
58bea3e0ae4e11d90b43d44ff2b1fcf862f0b591
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SHA256
e75489d69e7a86206704fe731a23e39ed8e3fb8a281966a90fde7fd94754916a
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SHA512
9d4497a015114ca842ef4d54ec252afb912435f1ffcb76150a80106b31700b58dfc81a37d4d24ea6bd53155f6e8917be2ccea49b7405fb4ca7237b28960b611b
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SSDEEP
1536:P+N67lVqB8pgX400TvNt0vqB8p6bbfjPrDeW3P6pqB8kXel/T8+Ecdo8M:a67ju4NtISPr5fvXel/T8+Ddo8M
Malware Config
Signatures
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1048 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE 1048 EXCEL.EXE
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\hellokitty\NTRUEncrypt\src\ntru_crypto_ntru_encrypt.js1⤵PID:3984
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /n "C:\Users\Admin\Desktop\UseRepair.xlt"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1048