Malicious PDF — malware analysis report

Static analysis result for SHA-256 f772a064f4394643…

MALICIOUS

PDF

49.8 KB Created: 2020-08-10 23:40:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 20878f493c75021c2bfff1f18fc13ea1 SHA-1: e85f30ee335518c5bc60824e6178f8efe93bcdd1 SHA-256: f772a064f4394643bc263519fb4b91a4e1978c33a4210a714351d17b3359c74d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=pcr+protocol+pdf'. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The embedded URLs suggest a social engineering lure, likely aiming to trick the user into clicking the malicious link.

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.com/pify?keyword=pcr+protocol+pdf In PDF document text
    • http://files.daniellemerceryoga.com/uploads/1/3/1/4/131453007/ropuwafisuvuwep_fevun_xetanovorir.pdfIn PDF document text
    • http://files.finalflightministry.com/uploads/1/3/1/3/131398194/1081916.pdfIn PDF document text
    • http://files.alizarothdmt.com/uploads/1/3/1/3/131379824/f0c6fbd.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/1/0434/0459/1254/files/82178196359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3180/4574/files/samsung_bd-_j5700_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2020/2663/files/nufoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/88897425697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2278/5444/files/vumasetepadiretomosuzodox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4306/1913/files/kojefogojurebibiperazeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/your_wish_is_your_command.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8918/3398/files/64107189226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8359/4917/files/45107527940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/how_to_make_link_in_tkinter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0775/2861/files/kusozigevize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44628440260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0160/1444/files/50102226821.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 6

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_off00007c36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C36 4764 bytes
SHA-256: e205603c15b4b92ce2993f9c8faf29860ad974647b4d76d2048b4664891ba938
font_01_sfnt_off00008c74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C74 14872 bytes
SHA-256: 7667a3b5b5d42086f08c61b8ce13c83489989e0441c56539fb19e8255f496b39

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