Malicious PDF — malware analysis report

Static analysis result for SHA-256 f36769ea1e6f2e55…

MALICIOUS

PDF

45.6 KB Created: 2020-08-20 22:29:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2cef5cb37ca927240a9c2368032844e7 SHA-1: d508ca8f1e34095dbc5339a3028dd48caa4528da SHA-256: f36769ea1e6f2e555d7b7b0813543511462590028de2bcd30db39d21470a93fe
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external websites. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=google+font+awesome+cheatsheet'. The document body, though heavily obfuscated, also contains this URL and other links, suggesting a link farm or redirection scheme designed to lead users to malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=google+font+awesome+cheatsheet In PDF document text
    • http://koledut.drjustingallantnd.com/uploads/1/3/2/6/132695366/tofimegod-gukusedan-tunabimuv.pdfIn PDF document text
    • http://files.mrsamystaley.com/uploads/1/3/1/4/131483440/3901238.pdfIn PDF document text
    • http://files.kylamitsunaga.com/uploads/1/3/0/7/130775950/nulodi.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/1/0436/7374/7609/files/nevepuxuvadome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2078/7613/files/pdf_decrease_file_size.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3799/0805/files/35761139668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8572/3816/files/54654196616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2151/6449/files/13034080826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/5845/5705/files/nomifapimokoteje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5836/2518/files/pdf_antropologia_forense.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9740/0223/files/ledojifobitovumujori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9836/5340/files/intro_to_the_design_and_analysis_of_algorithms_levitin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4802/4741/files/41708565220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6522/files/86150474405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9692/3555/files/bmg_bearing_catalogue.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_off00006c5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C5C 5320 bytes
SHA-256: 29a6a0a1c21431600c4a29818520c1675fac62837f21fbdde848df110f9ff2ab
font_01_sfnt_off00007e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E70 13080 bytes
SHA-256: 12add36023a543d65d89557d9b85db0c76a9dc4b8961255ec449a2764f986f4f

Open this report in the interactive analyzer, or submit your own file for analysis.