Malicious PDF — malware analysis report

Static analysis result for SHA-256 7609407822ff5add…

MALICIOUS

PDF

36.8 KB Created: 2020-08-10 03:01:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b6353d85da611f7a6d093dd6d685cea SHA-1: 2a985b56a3916a135f0512cbd707bbdd15be1201 SHA-256: 7609407822ff5add023f6aba4e9207dab23184d2b64878bdf10fa57e8351519e
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body and heuristics indicate a lure for free downloads, likely a phishing or scam attempt. The ML classifier strongly supports the malicious verdict.

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/pify?keyword=libro+numerologia+biblica+pdf In PDF document text
    • http://files.english3000.org/uploads/1/3/1/6/131637374/bewajasasabozej_kiwuwukaduwelev_neruti_sazeve.pdfIn PDF document text
    • http://files.dianashepherd.co.uk/uploads/1/3/0/9/130969818/cdde6898331.pdfIn PDF document text
    • http://xojuse.otamamarere.com/uploads/1/3/0/7/130776208/9e3671668f.pdfIn PDF document text
    • http://duduvak.ayeletfirstenberg.com/uploads/1/3/0/8/130874284/30ff558ef6455b.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/1/0429/2175/4787/files/70426188946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/biological_age_reversed_study_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1800/2340/files/wereziluberunubewojevam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0539/3571/files/joraj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/21783216454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6568/8743/files/46664091898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1462/7223/files/76529739933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/jukububokem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3430/1848/files/2576832213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1063/7476/files/jimepotakazejekatomox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3871/files/mupasisakifone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0092/2261/files/zenigukubigitetatugufe.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_off00004e58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E58 5380 bytes
SHA-256: 9642dfd9cef3d12b3f733fc1c4bdb58abe640171fc4658e9ce2fb325e5b4ed88
font_01_sfnt_off0000608e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608E 11040 bytes
SHA-256: 7211cbedcaf6b142a9f230f7c7d6ce8b7434a8d73cde0910ceb910ea8b5f4472

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