Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fb49538c5f45e69…

MALICIOUS

PDF

68.5 KB Created: 2020-08-12 11:58:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fe7d94750525cf168ad341f6cdb934c SHA-1: 2db014e5fdd5539b2a2a67946cc1b8b499f79a1f SHA-256: 2fb49538c5f45e69d554ac145747f82dcb2fdab1c353fb744e9971d5156f9e08
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, with one heuristic specifically identifying a malicious redirector at 'https://ttraff.ru/pify?keyword=camino+frances+map+pdf'. Another heuristic indicates a link farm, suggesting an attempt to manipulate search engine results or distribute content. The document body, though heavily obfuscated, contains the same URL, reinforcing the lure. The presence of a malicious redirector strongly suggests this PDF is used for phishing or to deliver further 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=camino+frances+map+pdf In PDF document text
    • http://files.socialdeterminantslab.org/uploads/1/3/0/8/130873927/81aeccdba457b.pdfIn PDF document text
    • http://benomof.nstcricelake.org/uploads/1/3/1/4/131438869/bd4de1cd5acf.pdfIn PDF document text
    • http://files.inspiredwithdana.com/uploads/1/3/1/3/131379591/48bd4ab25dae1e0.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/1/0430/9906/2421/files/alexander_solzhenitsyn_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2508/4065/files/xumasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5802/7928/files/antibiotic_guidelines_2020_johns_hopkins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1313/6799/files/vuxotipugodesiweratineko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5254/5701/files/manual_of_office_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/gowotesewusobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2849/6036/files/74027718900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2329/2840/files/dukavetumemenalupazatabib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3141/2379/files/nidisapiruzupaxiwux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1130/9719/files/36688257838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7617/2441/files/amenaza_de_parto_pretermino_manejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1631/3242/files/differential_calculus_joseph_edwards.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEE6 5172 bytes
SHA-256: 71b7924acc23e2dd8db2e4b2e9ef9298d2aca464ccd3e43eb4c9e431ed3ca4f6
font_01_sfnt_off0000e05f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE05F 10720 bytes
SHA-256: aa2cab0b1230e0eaec3711876fc2200054698c9786e0b368365fc5cbce1141ba