Malicious PDF — malware analysis report

Static analysis result for SHA-256 2059539abd74c5e4…

MALICIOUS

PDF

139.0 KB Created: 2020-08-19 10:30:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 30aae7fb37d35da19a1c9a0915f35bcf SHA-1: d3b202c8a91b869082d4251d5976b8971355ab37 SHA-256: 2059539abd74c5e4fb8ccf642503b97161edc7dbed5f3bf7855a4b0a3021ba60
194 Risk Score

Malware Insights

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

The PDF contains embedded links, with one prominently pointing to 'ttraff.ru', identified as a malicious redirector. The document body, though partially corrupted, includes the same URL and a title related to medical guidelines, suggesting a lure to entice users to click the malicious link. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a redirection-based attack.

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=chronic+stable+angina+guidelines+2016 In PDF document text
    • http://files.sunfirerealestate.net/uploads/1/3/1/6/131606133/1904766.pdfIn PDF document text
    • http://kibet.archvizblender.com/uploads/1/3/1/4/131482995/4140338.pdfIn PDF document text
    • http://tuben.agdersymfoniorkester.com/uploads/1/3/1/3/131383483/ffc895135.pdfIn PDF document text
    • http://rizula.secondcreekmdpfhad.com/uploads/1/3/0/8/130814310/vilalufukejiru-kededo-ravojejufu-panozazajajube.pdfIn PDF document text
    • http://files.rishar.com/uploads/1/3/0/7/130738620/4b55b83.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/1/0434/3490/1671/files/weraliwakedojewanofaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8924/8927/files/85910934250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8910/0951/files/32270732571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8360/3873/files/19513734781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2476/1510/files/crucifixion_or_cruci_fiction_ahmed_deedat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2284/4067/files/investigating_biology_laboratory_manual_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9505/5766/files/20352464165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6194/3199/files/79801289900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2783/1712/files/xanasixodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/45269965395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijovosulodomozov.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_off0001d82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D82D 5728 bytes
SHA-256: 0bccfb7ec1b52a73dcd34369f5436415cc54e24b2fc4e11f773c08be85e375d8
font_01_sfnt_off0001eb8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EB8E 16260 bytes
SHA-256: d94360ae6ba3a7217e878d7976cce694e10a12891c2cc45ee3a86b57f31db67d

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