Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 0ff979ea9674b24e…

MALICIOUS

Office (OLE) / .DOCX

210.6 KB Created: 2020-09-21 19:39:00 Authoring application: Microsoft Office Word
MD5: df06f1b66766de5d2adfdb4b29036628 SHA-1: 735011f4ee09ab035464c838aa330d78950b7705 SHA-256: 0ff979ea9674b24eaaf44e80354ff0126f6a59acc790907ccb1fc48c8e1384b8
242 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open macro that utilizes CreateObject and GetObject functions. This indicates an attempt to execute arbitrary code upon opening the document. The obfuscated nature of the script suggests it is designed to download and run a secondary payload, a common technique for malware distribution.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9764637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764637-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
4078e425aac0675c0d67424bcd647792033cab09565190ea70103f9b942a9f1f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19109 bytes

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