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

Static analysis result for SHA-256 028f51dbdfd44aa2…

MALICIOUS

Office (OLE) / .DOCX

218.6 KB Created: 2020-10-28 16:03:00 Authoring application: Microsoft Office Word
MD5: 61f3a3f47e7b1cb531e81486976cce9c SHA-1: 705b249b246366a78a732cc4fe0cc58a16ced84e SHA-256: 028f51dbdfd44aa2c12928be40c8b34c1178a7b36c3aa2556596393a09409083
202 Risk Score

Malware Insights

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

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that utilizes CreateObject. This indicates an attempt to execute code upon opening. The ClamAV detection as 'Doc.Downloader.Generic' further supports that this file is likely a downloader for additional malicious content. The obfuscated VBA script attempts to replace specific strings, suggesting a dynamic payload retrieval mechanism.

Heuristics 6

  • ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject 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
432b4517275395423e4145d722d6a456d77df175cda38550f4e26528858e8adb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18870 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.