Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 49b387379aa85ee9…

MALICIOUS

Office (OLE)

175.5 KB Created: 2009-09-18 09:21:00 Authoring application: Microsoft Word 11.5.0
MD5: bc671621df56746fdd4eeda3acf23fd5 SHA-1: 4b834e28df3812d6e3e87ea8c4b97deff0fee774 SHA-256: 49b387379aa85ee9f9254b90065e7623b13e20748dc43bdd79c6c0d599cb6238
180 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with the signature 'Doc.Trojan.Thus-8'. It contains a VBA macro, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The presence of embedded URLs, although many are confirmed benign, suggests a potential delivery or command-and-control vector. The macro likely attempts to download and execute a second-stage payload.

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://www.lacuradelgirasole.it
    • http://www.metodogrinbergmilano.com
    • http://www.metodogrinbergmilano.com/
    • http://www.grinbergmethod.com/
    • http://www.fondazionelucabarbareschionlus.it
    • http://www.clarart.com
    • http://www.apple.com/DTDs/PropertyList-1.0.dtd
    • 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/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://ns.adobe.com/tiff/1.0/
    • http://ns.adobe.com/exif/1.0/
    • http://ns.adobe.com/photoshop/1.0/
    • http://www.iec.ch

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
4da649a8c64f4ba809e7b163cb7e1f7833abe5cb3f1e35b1abd6ecb28ef323c1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2363 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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