Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6ba09917f9a0f7…

MALICIOUS

PDF

40.1 KB Created: 2020-11-07 00:48:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 69edb883422f5872fec2b8f209496df2 SHA-1: 17b805e41e0d93a95cbeccf7e3c926925527c35e SHA-256: 2b6ba09917f9a0f7e6388a72ebfd95940a7b7e6367022a6214436da54180b44b
194 Risk Score

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://traffking.ru/wb?keyword=i%20too%20had%20a%20love%20story%20audiobook In PDF document text
    • https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/lupadutapa_kosub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366015/normal_5f8759dd42a88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402940/normal_5f931c3537fa1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387226/normal_5f94600c20365.pdfIn PDF document text
    • https://rezivunafotete.weebly.com/uploads/1/3/4/3/134354631/rirubejijinoli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373778/normal_5f8a14a287201.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bulozor/31411352682.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/wokubop.pdfIn PDF document text
    • https://s3.amazonaws.com/sisaxu/54411464299.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/xojub.pdfIn PDF document text
    • https://nijubar.files.wordpress.com/2020/11/rogomawupesuwofagekaw.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_off00005ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECF 5216 bytes
SHA-256: 1ddf488a872b991ec75a8006ff88bb05a93f022bd7db1e3a12e1365db3a4df5c
font_01_sfnt_off0000708c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x708C 10264 bytes
SHA-256: f2fb17ed2de71b0659554d4394424ae4f16b0311b4ed1503e9694a8888fbf914