Analysis
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max time kernel
133s -
max time network
135s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
18-01-2022 13:44
Behavioral task
behavioral1
Sample
05361d3314ba8b997821bdeada471675b4082d1c8ad3c66bd57e84cba149a79d.xlsm
Resource
win10-en-20211208
General
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Target
05361d3314ba8b997821bdeada471675b4082d1c8ad3c66bd57e84cba149a79d.xlsm
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Size
99KB
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MD5
538c9e4e303b9290f50ef97588962a65
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SHA1
e4065aa7ff000ce9511300b7972564c1c1c1b2f4
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SHA256
05361d3314ba8b997821bdeada471675b4082d1c8ad3c66bd57e84cba149a79d
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SHA512
b5d8ee154f54c5a9128bb9739b2aaf2d432178549966a7216819d4ba1f5382a1fec0befad38dc768bd2d480bdffbad4454ed27221a98b0a63504f382a2f12aae
Malware Config
Extracted
http://avionxpress.com/lp/T9b1Bga4FdDfP5HI/
http://news.tapchivietkieu.info/wordpress/CJzFM/
http://monosun.net/wp-includes/JcDnYBSKpyfU/
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 3580 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
EXCEL.EXEpid process 3580 EXCEL.EXE 3580 EXCEL.EXE 3580 EXCEL.EXE 3580 EXCEL.EXE 3580 EXCEL.EXE 3580 EXCEL.EXE 3580 EXCEL.EXE 3580 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\05361d3314ba8b997821bdeada471675b4082d1c8ad3c66bd57e84cba149a79d.xlsm"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
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Downloads
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memory/3580-115-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmpFilesize
64KB
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memory/3580-116-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmpFilesize
64KB
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memory/3580-117-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmpFilesize
64KB
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memory/3580-118-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmpFilesize
64KB
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memory/3580-121-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmpFilesize
64KB
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memory/3580-128-0x00007FF9F7A00000-0x00007FF9F7A10000-memory.dmpFilesize
64KB
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memory/3580-129-0x00007FF9F7A00000-0x00007FF9F7A10000-memory.dmpFilesize
64KB
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memory/3580-288-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmpFilesize
64KB
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memory/3580-289-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmpFilesize
64KB
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memory/3580-290-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmpFilesize
64KB
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memory/3580-291-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmpFilesize
64KB