Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbeb6e24a565e4d5…

MALICIOUS

PDF

46.0 KB Created: 2020-08-19 00:50:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c719f5a312673844e5092c8980f66e4f SHA-1: a84a77e8d00dd25b73096f23fff0ed4a979d669f SHA-256: dbeb6e24a565e4d574c291687f9f98b089cb3f09850de3e2b89efc03c065ecff
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, many of which point to Shopify-hosted PDF files, suggesting a link farm for SEO manipulation or content distribution. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which further indicates malicious intent. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the extensive link farm and the presence of a malicious redirector are strong indicators of a campaign designed to lure users to malicious sites or manipulate search results.

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=cessna+310d+performance In PDF document text
    • http://files.homesewnbycarolyn.com/uploads/1/3/2/3/132303270/2358905.pdfIn PDF document text
    • http://files.yorkstone.ca/uploads/1/3/0/8/130874064/7431978.pdfIn PDF document text
    • http://files.kghypnobirthingsouth.com/uploads/1/3/1/4/131406258/6924360.pdfIn PDF document text
    • http://kofuba.stpeterslimpsfield.org/uploads/1/3/2/6/132696111/7837909.pdfIn PDF document text
    • http://files.netkienterprises.com/uploads/1/3/0/9/130969480/gokijibofad.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/1/0432/6536/0034/files/corpus_christi_primary_school_glasgow_uniform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7843/8302/files/eamcet_seat_allotment_order.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8478/3509/files/zalupef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9717/6741/files/cardiomegalia_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6148/4447/files/reading_certificate_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6913/6280/files/zevokonezezodunuzapata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9116/3291/files/grade_10_physical_science_textbook_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/55864873889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1290/5384/files/jovepemag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/guvax.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_off00007357.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7357 5532 bytes
SHA-256: 9919e4bbce54093a72ebbf54fdaf560d9eb1348860f4e2f5ca76fc0bc508dcb8
font_01_sfnt_off0000860a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860A 10984 bytes
SHA-256: 6d030c60f93e05c0581804582fe37aa237b5d41a519fb4aaf27ee1485209460d

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