Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ddd2d078a0ee83d…

MALICIOUS

PDF

37.5 KB Created: 2020-08-15 06:26:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6730f3f4bd0e63343df5c448e1713415 SHA-1: f4e69d040976bdcf8f566f0151d79e1e13d4e6aa SHA-256: 6ddd2d078a0ee83d1375fa071cc80aab18eadf616b107130e501189b2381b49a
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.cc) which is flagged as malicious. The document body and heuristics indicate a link farm strategy, likely to disguise malicious links as legitimate downloads or information. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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.cc/pify?keyword=globoplay+globo+reporter+portugal In PDF document text
    • http://files.lacrl.org/uploads/1/3/1/3/131398242/12a79935858065c.pdfIn PDF document text
    • http://fugal.pickleballhouston.com/uploads/1/3/1/4/131453574/videjofuvalivu.pdfIn PDF document text
    • http://files.mrmcdaniel17.com/uploads/1/3/1/4/131408353/9c468fa00e464.pdfIn PDF document text
    • http://files.bobartdawson.com/uploads/1/3/2/7/132740214/fodewodajibug_kataroso_nuxosaxedak_medog.pdfIn PDF document text
    • http://files.debaerelab.com/uploads/1/3/0/7/130739387/lilonasojokun_jodetonoj_bujetix_lonijuxonif.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/1/0432/9373/7118/files/developing_critical_and_creative_thinking_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1363/6259/files/vavurerezesorelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/mebuxujasosenised.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9972/3678/files/download_english_to_urdu_dictionary_in_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/pumepum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3110/1603/files/46770169913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1767/3636/files/mastering_the_market_cycle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9369/4366/files/54701564088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2359/7725/files/13782151542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2218/6656/files/zinuxeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/schneider_building_management_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1258/5634/files/godadujigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/82390355159.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B3A 3304 bytes
SHA-256: d7d013408685d1bf1dc1dee1d90893ea0daaa0e4e5db9584292ef4d00e01cff0
font_01_sfnt_off0000571e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x571E 5080 bytes
SHA-256: 9bfcdf4eadc9830bbe2fd89828fc6b8fe795994c101dc5b8495bf3b69af38778
font_02_sfnt_off0000687d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x687D 9364 bytes
SHA-256: 404ac0b8475458caf28c77dbbee61435599caa46b84b8e526fa64122ef8b3c43