Malicious PDF — malware analysis report

Static analysis result for SHA-256 7868603151025a0d…

MALICIOUS

PDF

51.3 KB Created: 2020-08-12 09:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b19574e184caa16ff7efc1011ae9e286 SHA-1: 60bb01ced414240fccb7ed6f67f8de0fac414daf SHA-256: 7868603151025a0dbddb61e913892162511c7debaaf0c7cefd529d090a218bb2
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to create an SEO link farm, redirecting users through a malicious URL (https://ttraff.ru/pify?keyword=canasta+regeln+2+spieler+pdf). The document body, though heavily obfuscated, also contains this redirector URL, suggesting an attempt to lure users to malicious infrastructure under the guise of providing a PDF document. The ML classifier 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.ru/pify?keyword=canasta+regeln+2+spieler+pdf In PDF document text
    • http://wafegebe.re3institute.org/uploads/1/3/2/8/132814930/1357685.pdfIn PDF document text
    • http://pafok.urbanathenscollective.org/uploads/1/3/1/4/131438539/3944744.pdfIn PDF document text
    • http://files.noblocky.com/uploads/1/3/1/0/131070762/8cd8a2034cff.pdfIn PDF document text
    • http://files.accoladenyc.com/uploads/1/3/0/8/130874090/458e719f13.pdfIn PDF document text
    • http://files.kozynook.com/uploads/1/3/0/7/130739011/5f0de502d.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/1/0435/5286/6455/files/najomafabirisekiguwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9254/8515/files/sociological_imagination_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/50708296688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4207/7846/files/38142862061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2568/6951/files/15982305381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6857/1294/files/nativewax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5940/4197/files/vofojusikezerujukejob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2906/7933/files/practical_kabbalah_for_magic_and_protection.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8859/3567/files/68322335011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0656/6306/files/fuvoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9618/7815/files/30998885240.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 6

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_off00008868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8868 5248 bytes
SHA-256: 641f3862150c9ef8d760956af48d222d6c3c77f236a7c65d12ed4b1556503c26
font_01_sfnt_off00009a4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A4C 11120 bytes
SHA-256: 51bee8a2aecd82edf6ef04e782b84f75baf780c52666e514749235868b497e91

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