Malicious PDF — malware analysis report

Static analysis result for SHA-256 766f6a9e4aaaf3e7…

MALICIOUS

PDF

35.0 KB Authoring application: Solid Converter PDF First seen: 2026-05-08
MD5: 37506de76eaa183d77aea7a070c9ca69 SHA-1: bfe1e705c448932fbc06248d2687af97623bcaa5 SHA-256: 766f6a9e4aaaf3e766b0ac01a239cc31ab2c1acfe1fb82cfe60c5f2192fc3e1e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm. ClamAV detection and ML classification strongly indicate malicious intent, likely for SEO spam or phishing. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://trailofhumanity.com/uploads/1/3/0/7/130776619/c55dcb8b0c6601.pdf In PDF document text
    • http://studentessayproofreading.com/uploads/1/3/0/7/130776269/96b2f35.pdfIn PDF document text
    • http://honleysamba.com/uploads/1/3/0/6/130604520/dadan_voret_jikuk_ratilir.pdfIn PDF document text
    • http://insightosteopathicmedicine.net/uploads/1/3/0/6/130639954/9ebe7c304ac5c80.pdfIn PDF document text
    • http://www.ravenwilder.com/uploads/1/3/0/6/130604658/bidiwejadetibef.pdfIn PDF document text
    • http://northwesternbreastsurgeons.com/uploads/1/3/0/6/130604860/08ec3923.pdfIn PDF document text
    • http://neulip.net/uploads/1/3/0/7/130775683/wuwuvitaro-bujajaf-fukuku.pdfIn PDF document text
    • http://mytranstrainer.com/uploads/1/3/0/8/130814992/doxalapivamalo.pdfIn PDF document text
    • http://central24h.com/uploads/1/3/0/7/130776449/346323.pdfIn PDF document text
    • http://adogsworld.be/uploads/1/3/0/3/130323216/606377.pdfIn PDF document text
    • http://zerocommissionfee.com/uploads/1/3/0/8/130814232/labopegararafiwiwi.pdfIn PDF document text
    • http://drivebergeron.com/uploads/1/3/0/5/130588468/a676c.pdfIn PDF document text
    • http://a1545636xstreamtravel.xsideas.com/uploads/1/3/0/4/130436181/130436181.html#unix+vi+commands+quit+without+savingIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF0 8288 bytes
SHA-256: 0682aa17a3fe5e0582e9330c0c64ebbc013aa84339b7ffedb6ab5649a12da190

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