Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b65767351bc9cfd…

MALICIOUS

PDF

48.4 KB Created: 2020-08-12 09:17:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 459d26e35ab9fa09b9695d28d302b2d8 SHA-1: 085944c0060da22e5fdff6b87a0bb5c775b81797 SHA-256: 3b65767351bc9cfd96f690de1580bff4bd08204bd8a50340808f30a6441db76f
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious redirector URL. This suggests the primary goal is to redirect the user to a potentially malicious site, likely for phishing or malware distribution.

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=bestiariusz+starego+%25C5%259Bwiata+pdf+chomikuj In PDF document text
    • http://files.kbesq.com/uploads/1/3/1/4/131438891/1323835.pdfIn PDF document text
    • http://files.kahproductions.com/uploads/1/3/0/8/130874067/rizokosapimuka-farevig.pdfIn PDF document text
    • http://files.lavenderhatbox.com/uploads/1/3/1/3/131384638/dapowekovufo.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/1/0429/8365/3535/files/71927418160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9887/3763/files/national_payment_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6777/2821/files/bcs_result_40.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/wamekaferebadorobiwuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8211/1381/files/46754981003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6399/1717/files/potus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8306/2695/files/types_of_public_relations_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/73314007811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8463/4530/files/catalogo_hinode_dezembro_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wajumibuxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1403/6383/files/55653311727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/majabosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/xosatuwokuporivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/types_of_casting_defects.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 2

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_off000078b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B4 6068 bytes
SHA-256: 59ee09feb56fb8730e96d58a7e45c3ec30977fbf5fc62d15d7bbadfbaf09529d
font_01_sfnt_off00008ce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE1 11888 bytes
SHA-256: e7408af96bbf78083408e4ef26bce070e0f096c162cee290f110beb52e27de55

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