Malicious PDF — malware analysis report

Static analysis result for SHA-256 62878433839f67f7…

MALICIOUS

PDF

40.9 KB Created: 2020-08-22 08:25:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 40f60416700e9f3bddeb20ea0e24d00e SHA-1: cf52cd9d6ec3ec093ff0e9f992fab69b107c7ca5 SHA-256: 62878433839f67f71ffe90e215bbeae22075e4d5a9c0d7f3c8f90f2942f3bb9f
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=qual+%25C3%25A9+o+significado+de+uniforme'. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload or phish for credentials. The presence of numerous external PDF links, many pointing to potentially malicious domains, suggests a link farm or SEO poisoning tactic to drive traffic to malicious content.

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=qual+%25C3%25A9+o+significado+de+uniforme In PDF document text
    • http://maravifo.sassyarabia.com/uploads/1/3/0/8/130874426/2567911.pdfIn PDF document text
    • http://tamire.myhillchurch.com/uploads/1/3/2/7/132740763/vopewo-rebal-betuzolov.pdfIn PDF document text
    • http://metigikiw.adventuresatyourdoorstep.com/uploads/1/3/0/7/130740572/9585232.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/1/0437/7044/5975/files/adda247_current_affairs_september_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2476/0488/files/73520272610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/dimaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2437/5194/files/89464183515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/60373702563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/89500212444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6929/9098/files/72479678442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1089/1676/files/36472598466.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_off00005acc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACC 5544 bytes
SHA-256: 97b7ccc9a8bdd9f71e66f43352a5ab57bf9c4fce863104899013955758039e3b
font_01_sfnt_off00006d4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4D 12928 bytes
SHA-256: 1d94cb6c0894b8895117c1a153f12aad9e3d413282f161fe4f09cf00c45f7b9e

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