Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 40e20dfb584a5419…

MALICIOUS

Office (OLE)

44.5 KB Created: 2004-04-23 15:36:00 Authoring application: Microsoft Word 8.0
MD5: 5fa9385ae11a273ce750e0e6cdac5f40 SHA-1: bbbc5364be58d5386346d61a06ccfe8c6661c5eb SHA-256: 40e20dfb584a54191d918f21a254dfb2020953d4c59ec38d946c0b0486bed53b
300 Risk Score

Malware Insights

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

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an attempt to execute code upon opening. The document body presents a seemingly innocuous prompt for a story, which serves as a social engineering lure. The presence of the 'macros.bas' artifact and the 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristic strongly suggest that the VBA macros are designed to run automatically and perform malicious actions, likely downloading or executing further payloads.

Heuristics 8

  • ClamAV: Doc.Trojan.Melissa-23 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Melissa-23
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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.
  • 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://ourworld.compuserve.com/homepages/ronmcgranahan/LEXCON.HTM

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
bead1d98b1607688616fa85b61dff5ae19c9b57c272fbe4661a0b913141e2b72		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3700 bytes
Detection
ClamAV: Doc.Trojan.Melissa-4
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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