Malicious PDF — malware analysis report

Static analysis result for SHA-256 11940fa241815995…

MALICIOUS

PDF

45.6 KB Created: 2020-07-30 07:21:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7af95164d57654c5da989fe23382ddd SHA-1: 872dd90f3ed5330114e09d761561d760017fbb99 SHA-256: 11940fa241815995fd2d26ac9236cfec417e6f16fe64807145888d0f5d5125df
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to phish users. It links to a known malicious redirector at 'https://ttraff.com/pify?keyword=agostinho+de+hipona+confiss%25C3%25B5es+pdf', which is likely used to funnel victims to a phishing site. The ML classifier also strongly flagged this PDF as malicious.

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=agostinho+de+hipona+confiss%25C3%25B5es+pdf In PDF document text
    • http://files.teachermrbenson.com/uploads/1/3/0/9/130969683/fuzixetawomuguwilefu.pdfIn PDF document text
    • http://files.denicechenault.com/uploads/1/3/1/6/131606670/rasugupelod_falilugi.pdfIn PDF document text
    • http://files.clairelucasgallery.co.uk/uploads/1/3/0/7/130738876/ronasari-xelavevogavoguw-mivuro-duxosuzaj.pdfIn PDF document text
    • http://files.solanophonerepair.com/uploads/1/3/1/4/131452883/11fb1dad.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/1/0431/4031/7335/files/povizosatisurevad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/34531196998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9659/5868/files/totebinikujidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/kaxazekujula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/24700265181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9829/0856/files/lalisodarer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9380/3679/files/pomomobizowawobuwenir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2539/2035/files/14531985053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61259485886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5668/5468/files/64417377433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17418425376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/84058373296.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_off0000710c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710C 5284 bytes
SHA-256: 3ee3ce32d2fc076debed3b2c595ee1f7cd4972169dc8ba4b7442c4c4b5d1e6d7
font_01_sfnt_off000082c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C1 12292 bytes
SHA-256: 141d7b71fc53a4089466660fb92b1c08d8a00ffb82278a0c0839bb0afc69e9b7

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