Malicious PDF — malware analysis report

Static analysis result for SHA-256 725d7cac2c1b1b6e…

MALICIOUS

PDF

41.9 KB Created: 2020-08-15 00:44:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da2d8bae50f6695f882c106ba2274c6c SHA-1: 8073937d6c0b608c1fbe8ad050118f628eb70183 SHA-256: 725d7cac2c1b1b6e112a547ef44bc3b9f03bed9e7dcc3b2e0edf027cbed5da42
234 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to redirectors like ttraff.com, which is flagged as malicious. The document body contains garbled text but also includes the URL 'https://ttraff.com/pify?keyword=malwarebytes+anti-+malware++cnet', suggesting a lure related to security software. The presence of many external PDF links, some benign and some unknown, indicates a link farm strategy, likely to improve SEO for malicious content or to distribute further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=malwarebytes+anti-+malware++cnet In PDF document text
    • http://files.frizzante.ca/uploads/1/3/1/4/131453395/mivatefovu-mutesasunine.pdfIn PDF document text
    • http://files.lonestarwildernessmedicaltraining.com/uploads/1/3/0/9/130969818/a0a0f434dbd74.pdfIn PDF document text
    • http://gabake.designamanila.com/uploads/1/3/0/9/130969130/41c961d00ea21d7.pdfIn PDF document text
    • http://files.bellamcbride.ca/uploads/1/3/0/7/130776152/lamapusiv.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/1/0433/0687/7080/files/beloromawodosuxaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/mpdf_page_break_inside_avoid_not_working.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32773531818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5113/0785/files/markov_chain_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4333/2000/files/centrifuge_principle_and_application_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2756/0610/files/suzuki_motorcycle_repair_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/pezid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3663/8369/files/48888722425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9377/7827/files/49163251829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4958/9668/files/suzuvuvevekupeguwasavav.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_off00006769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6769 5316 bytes
SHA-256: cf14514e135a2858d6e5f32f3517924afd8016a8050de297904a22ac2ecaefe4
font_01_sfnt_off0000797f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x797F 9824 bytes
SHA-256: fbb9d24db0175b778ac8a112adfc1dde870440b2f604dc4518ea995ceb1ee61d