Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 9ee5189132b48618…

MALICIOUS

Office (OLE)

203.0 KB Created: 2008-11-21 15:55:00 Authoring application: Microsoft Word 11.5.0
MD5: d03226e050e8fe87a220945c7d0666c4 SHA-1: 513186c9040ffcb4c58cd2286814868856e31939 SHA-256: 9ee5189132b486185fef379b4c63e25ef9de3a6765e45b353e5836db850a1da1
180 Risk Score

Malware Insights

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

The file is a malicious Office document containing VBA macros, specifically triggering a Document_Open macro. The document body presents a plausible lure about a school club's calculator collection, aiming to trick the user into opening and potentially interacting with the malicious content. The presence of the Document_Open macro indicates an attempt to execute malicious code upon opening the document, likely to download and execute a second-stage payload. The ClamAV detection as 'Doc.Trojan.Thus-8' further confirms its malicious nature.

Heuristics 5

  • ClamAV: Doc.Trojan.Thus-8 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Thus-8
  • 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
  • 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://odfl.org
    • http://www.lahspiclub.com
    • http://odfl.orgAssistance
    • http://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/tiff/1.0/
    • http://ns.adobe.com/exif/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
9536455c299d3c93226cffcb0505be87942966d0c930743daf867737c3f4e0cd		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2354 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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