Malicious PDF — malware analysis report

Static analysis result for SHA-256 b260883ccac48e9d…

MALICIOUS

PDF

57.2 KB Created: 2020-08-08 13:58:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34da4242dffb295487c8bad28f9a8f23 SHA-1: e2c5f4be7ea195cb54192e1a753ebd7c1dcb854b SHA-256: b260883ccac48e9decfa6ef4941bc998b286a5ba9e4e4e98c14f7c8c30bf4970
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=historia+de+la+biotecnologia+vegetal+pdf'. Another critical heuristic indicates a PDF link farm, suggesting SEO poisoning tactics. The ML classifier strongly supports the malicious verdict. The document body, though partially corrupted, contains the title 'Historia de la biotecnologia vegetal pdf' and the malicious URL, reinforcing the lure.

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=historia+de+la+biotecnologia+vegetal+pdf In PDF document text
    • http://files.wastecontrolservice.net/uploads/1/3/0/7/130776483/9053121.pdfIn PDF document text
    • http://files.travelwithcarnetha.com/uploads/1/3/1/3/131381428/datawisomafok.pdfIn PDF document text
    • http://files.hpkcoalition.org/uploads/1/3/1/8/131871659/temezatamaso.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/1/0431/0165/1105/files/21209550177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6914/5241/files/jerimimetajuwikupiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/epigenetics_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6291/1391/files/75764078268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6302/4542/files/valud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/gozodiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7030/0070/files/escala_apgar_recem_nascido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemisavixazesunomezixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/11943158178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9346/4990/files/trigonometry_10th_edition_lial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4386/4224/files/7345637730.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 2

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_off00009fe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FE1 5484 bytes
SHA-256: 5b74b65288729bb4f29a43c1fb191b8fa89e2c7a19f7897df981d4e1ad4994e2
font_01_sfnt_off0000b298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB298 11484 bytes
SHA-256: 32897e13cf40d923d6af35828e79e1312dac7cafb1006658e3db9bbc77f0dc88

Open this report in the interactive analyzer, or submit your own file for analysis.