Malicious PDF — malware analysis report

Static analysis result for SHA-256 219d195107076e2e…

MALICIOUS

PDF

67.1 KB Created: 2020-08-23 14:32:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ac76e65a2b61d9d70073783fd0bf762 SHA-1: ad1345dbf2caed8af89fd3bf06a8929060a0bb4f SHA-256: 219d195107076e2e92f1f6bfb7a81be1bb84ba41844a6e77583d6bb6d6df79cf
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a critical finding of a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics, suggesting it is a primary lure. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.com/pify?keyword=aha+cardiac+arrest+guidelines+2018 In PDF document text
    • http://fezefo.roamingbrit.com/uploads/1/3/0/7/130739919/sevesusesarofuxovu.pdfIn PDF document text
    • http://motoso.ndacademyofdance.com/uploads/1/3/1/8/131871390/5131941.pdfIn PDF document text
    • http://files.shorewoodculinaryarts.org/uploads/1/3/1/3/131380299/jidenagududi.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/1/0429/4819/8556/files/93153926668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1602/7303/files/lumbalgia_y_hernia_de_disco.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0378/9991/files/zusufutajobofokureliruxof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9597/2256/files/the_promised_neverland_isabella_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9843/0876/files/accelerometer_calibration.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3551/6318/files/jituzakinusus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8365/1490/files/aleksandr_dugin_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5152/2977/files/pdf_bestanden_samenvoegen_voorvertoning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/27727318440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/2002/9852/files/angaaray_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1516/6357/files/defensa_fiscal_revista.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4314/4355/files/15805095227.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 2

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E5 5712 bytes
SHA-256: 1b82a7ca34ac299ff706af81bbe51039ef5c538eaca4d66646581b6b131764b8
font_01_sfnt_off0000d94c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94C 11196 bytes
SHA-256: 651c183826856d25a90b5e098ab3a0c661c2ca5c3f6d8eb0c24a3efda0109d48

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