Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1084ed86897a931…

MALICIOUS

PDF

41.4 KB Created: 2020-08-21 14:42:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c16ed9f39143551be59872e69e559b3 SHA-1: c5a143f0b4647679c0ecad3efe6d5bc9e06771e4 SHA-256: d1084ed86897a931538464e5dbd1faa4355c42c7a7b80208902f26432434f8fc
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=10+facts+against+school+uniforms, which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains this URL and other links to Shopify, suggesting a lure to a malicious payload disguised as a document. No scripts were extracted, limiting further analysis of the payload delivery mechanism.

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.cc/pify?keyword=10+facts+against+school+uniforms In PDF document text
    • http://beman.lachlanbest3d.com/uploads/1/3/1/4/131438316/lumojuxi.pdfIn PDF document text
    • http://files.wvrra.org/uploads/1/3/1/4/131406390/wexirubo_besuka.pdfIn PDF document text
    • http://files.virginiagraynovels.com/uploads/1/3/1/4/131483147/1344150.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/1/0431/1370/9722/files/38192342172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0758/9027/files/dictionary_english_to_tamil_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/bukafaxupuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8815/0690/files/kikexarafagoxumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62856854762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0210/8836/files/adoramus_te_domine_taize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5629/0206/files/minizefujevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8039/8486/files/bobapitefudofarajavafan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6010/9210/files/safenefejimupunovevezugut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4032/5282/files/2677416440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5965/7374/files/49941835262.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 5

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_off000064ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AE 5396 bytes
SHA-256: d3c3c0a453cf5ee230aa1b37d39b6fdcf331ae55ee054cd3fa836a01bf2ccfa9
font_01_sfnt_off000076cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76CF 10020 bytes
SHA-256: 4fdea06444e559c88735fb31de2d8d13c1ea86a9ea991a280ae62c6e5ef52b0d

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