Malicious PDF — malware analysis report

Static analysis result for SHA-256 7367c8c9044ab71a…

MALICIOUS

PDF

38.8 KB Created: 2020-06-06 09:11:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52a1cfd8c4b18c0cfe5acb69a01effd7 SHA-1: 1b1b15a24a307afe63ba62dda2b48a391b3f1166 SHA-256: 7367c8c9044ab71a3945ead1081d6876191382910420412ca7ab229978aa032a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, many of which are structured as SEO-friendly slugs pointing to other PDF files. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a large number of external links, suggesting a link farm or redirection scheme. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document, likely used for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://pitchperfecttravel.voyagerwebsites.com/uploads/1/3/0/2/130272973/130272973.html#handbook+of+clinical+psychopharmacology+for+therapists+eighth+edition PDF link annotation
    • http://krazytails.com/uploads/1/3/1/4/131407178/sawupikuv.pdfIn PDF document text
    • http://themusictheater.com/uploads/1/3/1/4/131455019/6567050.pdfIn PDF document text
    • http://sipna.website/uploads/1/3/1/6/131636664/jakudetedikolov.pdfIn PDF document text
    • http://dukesconsultingservice.net/uploads/1/3/1/3/131398222/22555.pdfIn PDF document text
    • http://classactionnewsletter.com/uploads/1/3/1/3/131379014/780595.pdfIn PDF document text
    • http://breezystaffingsolutions.com/uploads/1/3/1/3/131398313/pejijibusabuwib-nuvisafak-rofodenokamizo-mapofetedi.pdfIn PDF document text
    • http://pitchperfecttravel.voyagerwebsites.com/uploads/1/3/0/2/130272973/terms.htmlIn PDF document text
    • http://pitchperfecttravel.voyagerwebsites.com/uploads/1/3/0/2/130272973/dmca.htmlIn PDF document text
    • http://pitchperfecttravel.voyagerwebsites.com/uploads/1/3/0/2/130272973/policy.htmlIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://rizozilojaje.files.wordpress.com/2020/06/wovomur.pdfIn PDF document text
    • https://dogigagifu.files.wordpress.com/2020/06/87511152523.pdfIn PDF document text
    • https://vitosomuzete.files.wordpress.com/2020/06/tilokedaw.pdfIn PDF document text
    • https://rajibixevako.files.wordpress.com/2020/06/80025128503.pdfIn PDF document text
    • https://rawujax.files.wordpress.com/2020/06/15719952901.pdfIn PDF document text
    • https://rukigol34928554.files.wordpress.com/2020/06/zodoluwunevivowobe.pdfIn PDF document text
    • https://wegekivosum.files.wordpress.com/2020/06/41484934571.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn 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_off00006c40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C40 10092 bytes
SHA-256: 8597f01d0ee0170f05721e027cbafef37da167edf54b6e1589a799f0a5cab71f

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