Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f133bc349d5b1d9…

MALICIOUS

PDF

42.0 KB Created: 2020-08-08 13:08:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1373ee137c3a24994f93c99d22e0517f SHA-1: 93cbb64cf798f7993667f51f622229bd8d921440 SHA-256: 7f133bc349d5b1d9c15641647a0e236ae1cb359f2cc4ad659d87da4bc917351d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a mass external link farm, with many links pointing to PDFs hosted on Shopify. The primary redirector URL, https://ttraff.cc/wb?keyword=el%20modernismo%20y%20el%20posmodernismo%20pdf, is flagged as malicious and used in an SEO-based lure to trick users into downloading content. While no scripts were extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt.

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/wb?keyword=el%20modernismo%20y%20el%20posmodernismo%20pdf In PDF document text
    • http://files.dmillsphotography.com/uploads/1/3/1/8/131856725/pibup.pdfIn PDF document text
    • http://files.mosquitosaregone.com/uploads/1/3/1/4/131437378/3161943.pdfIn PDF document text
    • http://files.tanlaagoura.com/uploads/1/3/0/8/130873983/2324736.pdfIn PDF document text
    • http://sebalej.annranderaadpottery.com/uploads/1/3/0/7/130776031/rifelodutofovowuxiko.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/1/0430/6200/1825/files/jilimupawanebojagatujumuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4618/3847/files/13199447708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9169/3463/files/amidah_18_bendiciones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/tulozabujitilufetoduvaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6834/8830/files/46810635074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2329/2840/files/bifurcation_stenting_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/bilurep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3089/files/39642413436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1552/0935/files/68086652017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0718/8898/files/bunamujamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5591/files/discord_chrome_no_sound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/kotefizatazofewuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/57939168736.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 8

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_off00006728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6728 5036 bytes
SHA-256: cef66949eeee8bc3cc41562c4ed6e6bd2ad4932af3b66adf9dd84a8ada674d16
font_01_sfnt_off0000783f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x783F 10652 bytes
SHA-256: a7790cf8708e79789eabe3fadcce9e6922cd466d0a809173c7f1fa3ffbe9dd9a

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