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

Static analysis result for SHA-256 1982b6c4036286ba…

MALICIOUS

Office (OLE) / .DOCX

265.0 KB Created: 2020-10-28 13:40:00 Authoring application: Microsoft Office Word
MD5: 194b6444c82cec7eaacf68311196ec4c SHA-1: 8b4e058bd330fda3a9c94a5e61de078ff04a3793 SHA-256: 1982b6c4036286ba47a27de309abefb7b8e542dafc43448ef6437f504191143c
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that utilizes CreateObject. This indicates an attempt to execute arbitrary code upon opening. The ClamAV detection as 'Doc.Downloader.Generic' further supports that this macro is designed to download and execute a secondary payload. The VBA script itself is heavily obfuscated, making it difficult to determine the exact download URL or execution method.

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
04f0b14197f396c9b03f7b934599b1b01d62a486cd3090375b867094895917c9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18531 bytes

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