Analysis
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max time kernel
125s -
max time network
127s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
21-05-2022 17:39
Behavioral task
behavioral1
Sample
841b3a71bd15810a248d25452d42cc15d7cf87ed4b45c69c429d66b5ecbf9ef8.xls
Resource
win10-20220414-en
General
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Target
841b3a71bd15810a248d25452d42cc15d7cf87ed4b45c69c429d66b5ecbf9ef8.xls
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Size
40KB
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MD5
488bcff1bcc86312d1b6e1f4e46f1943
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SHA1
61f81eff162eaaa3b13789625adeb37ac3837cda
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SHA256
841b3a71bd15810a248d25452d42cc15d7cf87ed4b45c69c429d66b5ecbf9ef8
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SHA512
be26709cbc2a8eafb0c0d62a2feeaa9bc0928c0b0185609bf015ee4a5e407e99cdde6b39b8d86740a3cabf31f3fb3fa7eeb39bb2c49d219cb9a06333a588ce79
Malware Config
Extracted
http://jimlowry.com/9tag/Mv2ZYY61NBOf8/
http://stainedglassexpress.com/classes/veV/
https://n-process.jp/base/HPH/
http://www.4-hzim.org.zw/language/anCpC49vTB4/
http://salledemode.com/tgroup.ge/6USqthYYyIPw4V/
http://poiterdesign.eu/huur/nc/
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.
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEpid process 2864 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
EXCEL.EXEpid process 2864 EXCEL.EXE 2864 EXCEL.EXE 2864 EXCEL.EXE 2864 EXCEL.EXE 2864 EXCEL.EXE 2864 EXCEL.EXE 2864 EXCEL.EXE 2864 EXCEL.EXE
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\841b3a71bd15810a248d25452d42cc15d7cf87ed4b45c69c429d66b5ecbf9ef8.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2864-114-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmpFilesize
64KB
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memory/2864-115-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmpFilesize
64KB
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memory/2864-116-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmpFilesize
64KB
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memory/2864-117-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmpFilesize
64KB
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memory/2864-126-0x00007FFA3B300000-0x00007FFA3B310000-memory.dmpFilesize
64KB
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memory/2864-127-0x00007FFA3B300000-0x00007FFA3B310000-memory.dmpFilesize
64KB
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memory/2864-276-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmpFilesize
64KB
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memory/2864-277-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmpFilesize
64KB
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memory/2864-278-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmpFilesize
64KB
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memory/2864-279-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmpFilesize
64KB