Malicious PDF — malware analysis report

Static analysis result for SHA-256 05d1a06f0401e07a…

MALICIOUS

PDF

39.4 KB Created: 2020-08-23 16:41:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e22ba4a3ab3947ebb179fffc8808fecd SHA-1: f235e1ce9ec698850a7b0b13e31f6134d04a5c76 SHA-256: 05d1a06f0401e07aca707373028a30d7205fae4c4ffd66008b96a4565989ebf3
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.com) that is flagged as malicious. The document body and heuristics suggest a lure for free downloads, likely a phishing or malware distribution attempt. The embedded links and the redirector URL are the primary indicators of malicious intent.

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=diploma+applied+science+textbook+pdf In PDF document text
    • http://files.tcevintage.com/uploads/1/3/1/3/131381900/8803281.pdfIn PDF document text
    • http://files.greaterwayfaithworshipcenter.org/uploads/1/3/2/7/132740606/7841657.pdfIn PDF document text
    • http://xapom.airlineace.com/uploads/1/3/0/8/130814328/5696733.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/1/0432/3845/7504/files/79849607859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7505/0395/files/72096907094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6521/2066/files/65520072644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5119/6314/files/jobojixega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6839/1591/files/non_ruminant_animal_production.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8557/5832/files/pujobemavopisuwuduziw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2457/9751/files/jofatigasenoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13139855908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/34302102079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5756/9176/files/45744323051.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4756 5476 bytes
SHA-256: 25462d4bc516465ba041333f364403c94b1d12bfacc71aa7ed12317d48105d9b
font_01_sfnt_off000059e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E4 9792 bytes
SHA-256: 91fd6e75cabd9c9337e2223f45f0a64686407862b73a664689b27ec265ebf6e5
font_02_sfnt_off00007b98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B98 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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