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

Static analysis result for SHA-256 bbd5fa6f8a7f8915…

MALICIOUS

Office (OLE) / .DOCX

214.2 KB Created: 2020-09-21 07:35:00 Authoring application: Microsoft Office Word
MD5: 3f5ec0d6820f48c5109cb2be707e2e59 SHA-1: 49a7820ebeb4a7601ae3fe4451ad2855b7f134b8 SHA-256: bbd5fa6f8a7f89155f18a2ce58a3c8c5ec96ad3452ac15957567098125fce163
280 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initiating malicious activity upon document opening. The presence of CreateObject and GetObject calls further suggests dynamic execution of code. ClamAV detection as 'Doc.Downloader.Generic' indicates its primary function is to download additional malware. No specific family could be identified, but the overall behavior points to a downloader.

Heuristics 8

  • ClamAV: Doc.Downloader.Generic-9764473-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764473-0
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
a72546be4835befa0cd5934bb3d180228dbaffbae6f31f70f11c03f05171f092
vba-macro oletools.olevba.extract_macros (decoded VBA source) 19249 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.