Malicious PDF — malware analysis report

Static analysis result for SHA-256 11ce57183148d6cf…

MALICIOUS

PDF

38.8 KB Created: 2020-08-15 16:37:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3328584037379f5e0424a3348e09cb7b SHA-1: de7c2db909909aa2a944bd292aac57478d821d0f SHA-256: 11ce57183148d6cfb10b1265265075ada0010bda0870cf2ccd05e6eec6a9ffd3
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to trick users into downloading further content. The presence of many external PDF links, some hosted on Shopify, indicates a link farm or SEO manipulation tactic to distribute malicious content.

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=aaa+2018+full+sub+indo In PDF document text
    • http://files.goldbergiryami-taxcert.com/uploads/1/3/1/4/131437711/raduropogipo-mawad-neworafe.pdfIn PDF document text
    • http://files.revelstokeflorist.ca/uploads/1/3/2/3/132302876/bibomedo_vipux.pdfIn PDF document text
    • http://files.rynshell.com/uploads/1/3/1/0/131069899/xofuwemuj.pdfIn PDF document text
    • http://files.visithammondny.com/uploads/1/3/1/4/131437308/vufagikuv.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/1/0430/2936/4889/files/circuit_board_symbols.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mazimuzoxoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8202/3061/files/48332351021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4493/files/xomozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/58860237631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tunamowari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3311/6315/files/wuwawurojezuwibimifeduj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/16332801756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/19949931640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5959/7727/files/inhibitors_of_protein_synthesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/josurenadebosimasulad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3593/5388/files/service_communication_failure_pnkbstra._ex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2704/6301/files/naming_2d_shapes_worksheet.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_off0000543a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x543A 5456 bytes
SHA-256: f4125555627d8ad00dc1e1eea98ccf7ed1d63379976b85e1fb76a5c4a9c2d7f2
font_01_sfnt_off000066d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D1 12424 bytes
SHA-256: e3bd5ad79ecdffd218019cc5c0eb77b057a3c3f386dc22502e3bf067b6a8a34b

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