Malicious PDF — malware analysis report

Static analysis result for SHA-256 978295801195bde7…

MALICIOUS

PDF

49.0 KB Created: 2020-08-18 15:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c1132b4481d1b2f17406682386ec592 SHA-1: 0e6d8011e0da12f331ccecea174fd0e54f74fbf1 SHA-256: 978295801195bde7d264d1d4d9ff71d43d1334370b42bc89c94516116bb45a1e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, contains text related to 'cover letter template medical office' and the malicious URL. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly. The primary malicious URL is ttraff.com, which redirects to a payload.

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=cover+letter+template+medical+office In PDF document text
    • http://xupewira.gerardgorman.com/uploads/1/3/1/1/131164250/xazukuti-nedasobokit-jimavif-givasofefezevap.pdfIn PDF document text
    • http://files.flowersbyroseus.com/uploads/1/3/1/6/131637881/tonijudagi_murofanupajutij_poxaxosifozep.pdfIn PDF document text
    • http://files.johnsonsfamilyfitness.co.uk/uploads/1/3/0/7/130739120/bfc6bda2ac4857e.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/1/0431/5863/4658/files/govepamakupoxerexugavujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2058/2050/files/antecedentes_de_la_tecnologia_educativa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2121/7442/files/contoh_abstrak_tesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6491/8165/files/43756248681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3511/5175/files/megonukef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8348/9687/files/34603755540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/76592186686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/21523541440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6913/6284/files/28653414019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6196/0091/files/79093770378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0250/2048/files/74033353351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0587/8167/files/3075238441.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_off00008145.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8145 5088 bytes
SHA-256: 84a8e057e6a393a00ff75bea4e8812363b4113f887f15c549ce8eae130c8220e
font_01_sfnt_off00009283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9283 11000 bytes
SHA-256: 6b3823993ee66b305d9c8577d4c7b9638ec95b8284ee972446eb2d140e8b57c3

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