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

Static analysis result for SHA-256 c8697d2da691e890…

MALICIOUS

Office (OLE) / .DOC

75.0 KB Created: 2020-05-21 16:15:00 Authoring application: Microsoft Office Word
MD5: d450526089df44b47b0b1cc2b83c222c SHA-1: 375c6143c6680659818f6e0a42a52f71d58e2572 SHA-256: c8697d2da691e890e0c3e067dcf3f754fd4f064d9945ef6ceba17e8b57d17736
222 Risk Score

Malware Insights

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

The file is a Microsoft Word document containing VBA macros, specifically an AutoOpen macro, which is a common technique for malware delivery. The document body explicitly instructs the user to 'Enable editing' and 'Enable content', indicating a social engineering lure to bypass macro security. The presence of an AutoOpen macro and the GetObject call strongly suggest that the VBA code is designed to execute automatically upon opening the document, likely to download and run a second-stage payload. ClamAV also detected this file as 'Doc.Downloader.Mryi-7859265-0'.

Heuristics 8

  • ClamAV: Doc.Downloader.Mryi-7859265-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Mryi-7859265-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • 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
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • Suspicious extracted artifact info 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.
  • 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://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
be08d1a757fbdc4ee0b45b9b534c2083dd09225e4d6bbd8d972ba775336b07fe		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20371 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 2 long base64-like blob(s).

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