Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 6284608a75bd2f21…

MALICIOUS

Office (OLE)

153.7 KB Created: 2020-09-14 22:09:00 Authoring application: Microsoft Office Word
MD5: 42093f906f31ae8f68fce3c509550d86 SHA-1: 9de0efddb73376f81d6d03c2719a156611d54d15 SHA-256: 6284608a75bd2f21cce00c2c3453353c83b146947f173dc53013c0919178a4c7
202 Risk Score

Malware Insights

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

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initial execution. The heuristics indicate the use of CreateObject and p-code execution, suggesting the macro attempts to perform actions beyond simple document manipulation. While the exact payload is obfuscated, the presence of these indicators strongly suggests a downloader or droppper functionality, likely leading to the execution of a second-stage malicious payload.

Heuristics 6

  • ClamAV: Doc.Malware.Generic-9760527-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-9760527-0
  • 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
bf2dc6e4793502154f28a14458af4f5198ccc48932a5641a4c34f7f1fcdc0c82		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18582 bytes

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