Malicious PDF — malware analysis report

Static analysis result for SHA-256 225386e28f2103bc…

MALICIOUS

PDF

47.4 KB Authoring application: PDFBox
MD5: ac27848c8e7601e3c86e8fe0cfd1224d SHA-1: 3b1c882a88921a9c04a497795f8a9a8f1292061c SHA-256: 225386e28f2103bc56542fb75d064f2e0fdd627ef23aab808c6779e28cde3ce3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically identified as phishing or traffic redirection. The embedded URLs are likely used to distribute further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://learnmormonfacts.com/uploads/1/3/0/2/130273626/ludoxotafore_tefivoronexo.pdf
    • http://stephensonspropertymaintenance.ca/uploads/1/3/0/4/130483584/fizunusedudasatoj.pdf
    • http://judehayes.com/uploads/1/3/0/8/130814189/sotelidozan.pdf
    • http://sokaproject.com/uploads/1/3/0/4/130489467/lagoxomat.pdf
    • http://sloanemorocco-efolio.com/uploads/1/3/0/6/130621656/880066009822d76.pdf
    • http://art4peace.net/uploads/1/3/0/6/130639721/1021157.pdf
    • http://caribbeanshadeproducts.com/uploads/1/3/0/2/130271132/pesulezej.pdf
    • http://legacyparenting.today/uploads/1/3/0/3/130379589/3126931.pdf
    • http://luckybookpress.org/uploads/1/3/0/7/130740571/599416389.pdf
    • http://unutma.com/uploads/1/3/0/6/130604892/bekariz_diwimobekita_vamivofel.pdf
    • http://360visiontechnologies.com/uploads/1/3/0/5/130551369/bapuzibob_zulelo_bokater.pdf
    • http://storylinecanvas.com/uploads/1/3/0/8/130874386/1027682.pdf
    • http://www.vantagemanagement.net/uploads/1/3/0/5/130551049/9617826.pdf
    • http://sydneydudley.com/uploads/1/3/0/8/130813063/4906487.pdf
    • http://ashleydunn.blog/uploads/1/3/0/8/130813904/bolol_xegap.pdf
    • http://girishchavan.net/uploads/1/3/0/6/130604247/nuxuzixoziverek.pdf
    • http://migrantliteraturejournal.com/uploads/1/3/0/8/130874237/9d83580.pdf
    • http://cs-abq.com/uploads/1/3/0/8/130813668/50919ff96c329a.pdf
    • http://fenetresomega.com/uploads/1/3/0/8/130873782/0dc030c43eecd.pdf
    • http://sceneguide.net/uploads/1/3/0/6/130639281/1efecc3efb3db5.pdf
    • http://munchkrunch.com/uploads/1/3/0/5/130551142/vaperiv-bexafepasidop-bagife-telavudopufa.pdf
    • http://youth.rjconline.org/uploads/1/3/0/6/130621951/85a72a98.pdf
    • http://adsl-63-204-18-9.benefitplans.org/uploads/1/3/0/4/130488220/130488220.html#stretches+to+do+after+back+workout

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004208.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4208 16036 bytes
font_01_sfnt_off00005917.bin
388080257371b0f74ad5f63e634cd4a71579a0b2851913f64099a4d52b37175e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5917 7616 bytes

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