Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f9fe26fa7e9780a…

MALICIOUS

PDF

32.3 KB Created: 2020-08-25 00:11:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f7bc447faa04b19121b8a7a7ee19e630 SHA-1: 2d1e7e607006d67b3ed00e182f4a8d1bb2c5f745 SHA-256: 6f9fe26fa7e9780a4556835bd257b2685224351bfcb82c256f2581de0a99b583
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to Shopify domains hosting other PDFs, forming a link farm. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=phyno+one+chance++video'. The ML classifier also strongly indicated maliciousness. This suggests the PDF is designed to lure users through a chain of redirects, likely to a phishing or scam page.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=phyno+one+chance++video In PDF document text
    • http://files.xanderchiaramonte.com/uploads/1/3/0/8/130813461/7095272.pdfIn PDF document text
    • http://rakufaga.maxey-droege.studio/uploads/1/3/1/4/131438563/7029492.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/1/0432/2626/7816/files/xijejelizifujoxel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3485/9941/files/34834321842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/33647917740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9693/2501/files/large_intestine_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5311/2735/files/reactions_of_alkanes_alkenes_and_alkynes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8176/7848/files/27634558304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6956/2266/files/banaminudis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2890/6138/files/jovilisagelub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/7055/5047/files/gifawapejib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/shoulder_arthroplasty_rehabilitation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/que_es_un_astrolabio.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000042c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42C1 4884 bytes
SHA-256: 897b6a1bb577280f646aaacf5d9bccae556eb603da8f1468aa96bbff7f851fab
font_01_sfnt_off0000535d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x535D 9828 bytes
SHA-256: 77dc56949f0b9e230730a42851b51ce47248c2588dfd1ee7e681699c7fe26464

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