Malicious PDF — malware analysis report

Static analysis result for SHA-256 edb919a5f48bfd3e…

MALICIOUS

PDF

63.8 KB Created: 2020-07-31 20:03:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce019ee79ec6eabace7d04b74207c432 SHA-1: f865fc8d0a6d2a3d347da542dc01fb6d97510fdb SHA-256: edb919a5f48bfd3e3760544cd80b372d576f80ac9052b61d0e3e67202a62b794
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as free downloads, redirecting users through `ttraff.cc` to potentially malicious content. The document body and heuristics indicate a lure for free PDF downloads, likely a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://ttraff.cc/pify?keyword=prebles+artforms+12th+edition+pdf+free In PDF document text
    • http://files.batteryparkschool.com/uploads/1/3/1/4/131483153/solonabidunurir_zugenigutito.pdfIn PDF document text
    • http://files.kellyhosts.com/uploads/1/3/0/9/130968996/guwokimejuk.pdfIn PDF document text
    • http://files.kundaliniyogamanchester.com/uploads/1/3/1/4/131453577/duniwugeluze.pdfIn PDF document text
    • http://files.gailrosethompson.com/uploads/1/3/0/7/130775992/puvijaruj-wabipukebexove-zadefo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2562/9335/files/akg_y500_manual_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/63075656415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2920/8983/files/tipazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44994208471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/50606417604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9290/8963/files/15174310026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1296/files/57907730474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7222/5442/files/vabufixolobamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0797/5330/files/fawewivadanipidelexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/43485634751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/moxujawabisoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/benubojebexoreloruva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9232/9119/files/kekusosofosujedesirufore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6052/6246/files/16191394379.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000096dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96DD 5608 bytes
SHA-256: 0d6f5c91425516cf4ac5ca827bd9f8dafea7d3f9b4fdf97e16a656154870f958
font_01_sfnt_off0000a9bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9BC 2576 bytes
SHA-256: 10b97d8a06912f94799185ace647fc5292cc76ae692f369a7156ced9232ff913
font_02_sfnt_off0000b37c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB37C 10468 bytes
SHA-256: 62d1fc98ddc7eb41a9b18e8aa210d86439bab295b0b5af13e7fab8f6b56c70ea
font_03_sfnt_off0000d77f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77F 16780 bytes
SHA-256: eeb3f76ed05c21642d486420f5ced661d75a82e630bc15f6c8026468688c6baf