Malicious PDF — malware analysis report

Static analysis result for SHA-256 85732b2f811df0f6…

MALICIOUS

PDF

41.0 KB Created: 2020-08-01 20:32:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f268e45418c941945c6856dafe1285a SHA-1: b8286e05f39477fc4e8a3f60a05a48f17407501e SHA-256: 85732b2f811df0f677728fc1073925104fbca7231ab2afa3210e0d175ca8f994
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to redirector infrastructure. The primary malicious URL, https://ttraff.ru/pify?keyword=forgotten+god+francis+chan+pdf, is identified as a malicious redirector. This suggests the document is designed to trick users into downloading further malicious content or visiting phishing sites by presenting itself as a legitimate PDF.

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.ru/pify?keyword=forgotten+god+francis+chan+pdf In PDF document text
    • http://files.hsfhomeconnections-hsf.com/uploads/1/3/1/4/131406352/fibodunolukabovowo.pdfIn PDF document text
    • http://files.branhicks.com/uploads/1/3/0/9/130968995/rozife-repaso-lavinimipidesix-kixodunorekewak.pdfIn PDF document text
    • http://files.area5envirothon.org/uploads/1/3/0/8/130813663/4109407.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/1/0440/6145/8582/files/88214358956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9165/6855/files/85124502723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/22444676324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1750/2869/files/munivitebovigebono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4442/2310/files/tewanamikiraralolosazeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/60046413142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9542/5191/files/61290343448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5453/8658/files/4504426880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6443/5612/files/1891430975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/dobivasimagut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/mefifusekix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9688/3868/files/jimetedug.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 3

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_off0000626a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626A 5340 bytes
SHA-256: a494f7c71f22e65396845ec334be89c770cd4de23f25a8e7807ab704bb22283d
font_01_sfnt_off0000749b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x749B 10192 bytes
SHA-256: 812f1b0a0dd742dee8d2cdb15e496a787057dd2ab1607d7c3c1fb486e84f8b07

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