Malicious PDF — malware analysis report

Static analysis result for SHA-256 69d8eccc5c44ac11…

MALICIOUS

PDF

44.5 KB Created: 2020-08-09 00:58:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f60c4cc73ebbf7be6d7e38a39921fd18 SHA-1: 7247f1f9bc1118a345cb757a3ea1aeea52ecc438 SHA-256: 69d8eccc5c44ac11980cd027beb16c6dfe14f6ae5c5570ba297bee1ed0029173
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to SEO-optimized redirector domains, designed to trick users into downloading potentially malicious files. The primary redirector URL, https://ttraff.ru/pify?keyword=nelson+mandela+book+long+walk+to+freedom+pdf, is flagged as malicious and indicative of a phishing or malware distribution scheme. 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.ru/pify?keyword=nelson+mandela+book+long+walk+to+freedom+pdf In PDF document text
    • http://vitejiv.djspeaking.com/uploads/1/3/1/4/131409090/43e59322a.pdfIn PDF document text
    • http://files.petermaxwellslattery.com/uploads/1/3/2/6/132681342/6372441.pdfIn PDF document text
    • http://gukopenuj.aliciavilas.com/uploads/1/3/0/7/130739227/7044603.pdfIn PDF document text
    • http://files.paulcohenpsychology.com/uploads/1/3/0/7/130775379/594862.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/1/0432/8131/8056/files/bienes_y_servicios_con_tarifa_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9241/8468/files/free_ebook_reader_for_windows.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sexewagufik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6353/2951/files/jazuruwapitilozabaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0998/2107/files/kodaresizunusapekunironu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2355/7030/files/input_file_accept_and_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5697/1432/files/yaesu_vx-_7r_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9427/8293/files/mimixeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2505/5389/files/98625230877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wefudebavisizaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/files/mupevowosulupidakibuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9108/9813/files/rimemisisiserepij.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC9 5628 bytes
SHA-256: b2d2bfe7b6fa02a7c92fac6878c1c508e39efb7a790e84a563db29a6d206fe87
font_01_sfnt_off000080eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80EB 10380 bytes
SHA-256: 9d16a00ff1f5d088aab7ed74808f924888d3570c910bbe9f592288cea5ec5d6d