Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 d63828c97fef7c45…

MALICIOUS

Office (OLE)

74.0 KB Created: 2008-08-25 19:27:00 Authoring application: Microsoft Word 11.5.0
MD5: 076237983a31f44e74518271e007bb76 SHA-1: 59d4be9bc9746bb95fca16440828e0b0d9026a7b SHA-256: d63828c97fef7c4588eb859f6431aef6fd118dcdbcc8fc277dec852ff38cdda4
180 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with the signature Doc.Trojan.Thus-10. Static analysis detected VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The document body contains text about laboratory equipment, likely serving as a lure to encourage macro execution. No specific URLs or scripts were detailed enough to extract further IOCs beyond the ClamAV detection name.

Heuristics 5

  • ClamAV: Doc.Trojan.Thus-10 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Thus-10
  • 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://en.wikipedia.org/wiki/Measuring_instrument
    • http://en.wikipedia.org/wiki/Weight
    • http://en.wikipedia.org/wiki/Mass
    • http://en.wikipedia.org/wiki/Laboratory_equipment
    • http://en.wikipedia.org/wiki/Flame
    • http://en.wikipedia.org/wiki/Liquid
    • http://en.wikipedia.org/wiki/Reagent
    • http://en.wikipedia.org/wiki/Experiments
    • http://en.wikipedia.org/wiki/Precision
    • http://en.wikipedia.org/wiki/Titration
    • http://en.wikipedia.org/wiki/Laboratory
    • http://en.wikipedia.org/wiki/Chemical_compound
    • http://en.wikipedia.org/wiki/Laboratory_flask
    • http://en.wikipedia.org/wiki/Beaker_(glassware
    • http://en.wikipedia.org/wiki/Laboratory_glassware
    • http://en.wikipedia.org/wiki/Tool
    • http://en.wikipedia.org/wiki/Eye_protection
    • http://en.wikipedia.org/wiki/Rubber
    • http://en.wikipedia.org/wiki/Cork_(material
    • http://en.wikipedia.org/wiki/Glass
    • http://en.wikipedia.org/wiki/Plastic
    • http://en.wikipedia.org/wiki/Chemist
    • http://en.wikipedia.org/wiki/Temperature
    • http://en.wiktionary.org/wiki/gripping
    • http://en.wikipedia.org/wiki/Glassware
    • http://en.wikipedia.org/wiki/Analytical_chemistry
    • http://en.wikipedia.org/wiki/Test_tube
    • http://en.wiktionary.org/wiki/concave
    • http://en.wikipedia.org/wiki/Chemistry
    • http://en.wikipedia.org/wiki/Evaporation
    • http://en.wikipedia.org/wiki/Bunsen_burner

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
fa78ec2d4e30dcebbfb60ac4999cfa0be2d50bd4f7b9a22224258ee898a980a1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2347 bytes
Detection
ClamAV: Doc.Trojan.Thus-10
Obfuscation or payload: unlikely

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