Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f05cc6471030e98…

MALICIOUS

PDF

38.1 KB Created: 2020-08-14 06:45:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0bab116988822685688f2e0940b90a22 SHA-1: 91d0a5cd447f7a1ccb789ae2e175aaee5c95c77d SHA-256: 0f05cc6471030e9801c76df2fce483147fe8232af730c612b0ae8be505d3f71d
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains URLs that are part of a link farm designed to attract users with search terms like 'model paper'. The ML classifier strongly indicated maliciousness, and the PDF structure itself points to malicious redirector usage.

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=bin+sachivalay+model+paper+with+answer In PDF document text
    • http://wesujum.abigailcrscott.com/uploads/1/3/1/3/131383478/kopuxabu_domonurenufa_vixev_jupavibox.pdfIn PDF document text
    • http://dewasofut.ryanmohler.com/uploads/1/3/1/6/131636725/xebokigetorifed.pdfIn PDF document text
    • http://files.sciartmagazine.com/uploads/1/3/0/7/130739684/tojavubafuka.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/1/0432/6473/7448/files/17882190596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/girerulabelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/90265566119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7162/5634/files/zalenogax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2505/5389/files/mafej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/18020415554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8733/0464/files/mcgraw_hill_algebra_2_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4120/1064/files/19992763719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0522/0776/files/41821989058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8922/2037/files/45350536297.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_off000057c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57C2 5616 bytes
SHA-256: f20564eda72ca123e53dd73ce9a25daaff78e9a874b34613b064a5678a4eeb65
font_01_sfnt_off00006aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABA 9628 bytes
SHA-256: dc853081946491a3d9c672cc903fd889b05b5538fcf6fa96674f86cbafedaf75

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