Analysis
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max time kernel
122s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20220310-en -
submitted
29-03-2022 15:59
Behavioral task
behavioral1
Sample
333b5ee82bd5f8e66e5a18b46812fddc040b5a43857381c639ceb8636d3b5f03.xlsb
Resource
win7-20220311-en
Behavioral task
behavioral2
Sample
333b5ee82bd5f8e66e5a18b46812fddc040b5a43857381c639ceb8636d3b5f03.xlsb
Resource
win10v2004-20220310-en
General
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Target
333b5ee82bd5f8e66e5a18b46812fddc040b5a43857381c639ceb8636d3b5f03.xlsb
-
Size
357KB
-
MD5
302944e64457d1ab84ba3bde66786111
-
SHA1
4d0d53c2624a211395e29f7296b352f18d3ae3f4
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SHA256
333b5ee82bd5f8e66e5a18b46812fddc040b5a43857381c639ceb8636d3b5f03
-
SHA512
964032cc2364d8ac65e6ce2c93a3b0627b1e092e7d86bc7d0cc84f18b63f7514b8cd1827b16beb9b2cbee613570c8a2f1d54180c5cb9d8c9611099a1aa8721ab
Malware Config
Extracted
http://skifashion.pl/ds/161120.gif
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\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1672 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 1672 EXCEL.EXE 1672 EXCEL.EXE 1672 EXCEL.EXE 1672 EXCEL.EXE 1672 EXCEL.EXE 1672 EXCEL.EXE 1672 EXCEL.EXE 1672 EXCEL.EXE 1672 EXCEL.EXE 1672 EXCEL.EXE 1672 EXCEL.EXE 1672 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\333b5ee82bd5f8e66e5a18b46812fddc040b5a43857381c639ceb8636d3b5f03.xlsb"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/1672-134-0x00007FFB28410000-0x00007FFB28420000-memory.dmpFilesize
64KB
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memory/1672-135-0x00007FFB28410000-0x00007FFB28420000-memory.dmpFilesize
64KB
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memory/1672-136-0x00007FFB28410000-0x00007FFB28420000-memory.dmpFilesize
64KB
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memory/1672-137-0x00007FFB28410000-0x00007FFB28420000-memory.dmpFilesize
64KB
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memory/1672-138-0x00007FFB28410000-0x00007FFB28420000-memory.dmpFilesize
64KB
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memory/1672-139-0x00007FFB28410000-0x00007FFB28420000-memory.dmpFilesize
64KB
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memory/1672-140-0x00007FFB28410000-0x00007FFB28420000-memory.dmpFilesize
64KB
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memory/1672-141-0x00007FFB28410000-0x00007FFB28420000-memory.dmpFilesize
64KB
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memory/1672-142-0x00007FFB28410000-0x00007FFB28420000-memory.dmpFilesize
64KB