Malicious PDF — malware analysis report

Static analysis result for SHA-256 cec466eb15709759…

MALICIOUS

PDF

96.2 KB Created: 2020-09-18 09:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2269ba6354ebb9ce7a2dad9248315b1a SHA-1: 1533a09bf9247c651cc2df3fdb322038816d3497 SHA-256: cec466eb157097591c88c1856cb399f495c4197a3b449c58bb15a594a67e0adc
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.me'. The document body, though heavily obfuscated, contains the same string as the URL's keyword parameter, suggesting it's part of the lure. Additionally, another critical heuristic identified a PDF link farm, with the first URL pointing to a suspicious domain. The ML classifier also strongly indicated maliciousness.

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.me/wix?keyword=though+my+heart+and+flesh+may+fail+song In PDF document text
    • http://jufizijab.danbonnell.com/uploads/1/3/0/7/130775192/4373926.pdfIn PDF document text
    • http://files.martino1photo.com/uploads/1/3/0/8/130813317/bakizikebejusev-kilel-revopubapiki.pdfIn PDF document text
    • http://files.getcartparts.com/uploads/1/3/1/8/131871614/2552448.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/1/0436/2177/7570/files/16855698989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/4755/0882/files/64721620366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2956/9434/files/54684483661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/4175/0945/files/cero_absoluto_libro_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7729/6543/files/jurasosegusar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7803/3313/files/archer_season_10_episode_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/vaxibinibak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1582/2747/files/exterior_plywood_sheets_wickes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6703/1200/files/pennies_nickels_dimes_quarters_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/baixar_livros_gratis_em_iphone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7836/0987/files/wakilipabufekov.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 4

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_off00012b73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B73 5372 bytes
SHA-256: 6b07fbd462e273804f8ba626054bed0be30d6245c7734193445be1a5d5b4a06f
font_01_sfnt_off00013d9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D9A 17864 bytes
SHA-256: e5014209aba7a3fb9a8474b23f05523b5ae8327f977edf6245135c008d224d08

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