Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3ce43fdfa2f6a9…

MALICIOUS

PDF

40.9 KB Created: 2020-11-05 21:43:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 2efa533060d8c8922eb21346625d3078 SHA-1: e45ad1e55e6e9c58d0a6b8d7b0614c00977356d0 SHA-256: 4e3ce43fdfa2f6a99f1c722db9f2669118c6af213ad89decda32157a643eb5d8
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://gettraff.ru/123?keyword=access+my+google+email In PDF document text
    • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/ce0cb2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366676/normal_5f8748b0406fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376369/normal_5fa0eeb44478b.pdfIn PDF document text
    • https://digafixi.weebly.com/uploads/1/3/0/7/130776371/0f9af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f90ef0eb84ab.pdfIn PDF document text
    • https://fejamelaluboj.weebly.com/uploads/1/3/4/3/134311679/rutawemonesuf.pdfIn PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/fepopasumufir_tesurom_wanalazakemu_pesubatarazadix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379049/normal_5f8ce17d393c0.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/leguvefu/75154434904.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8c671ce-a068-492c-a9ac-1b497b8cc398/72188324014.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/36082287514.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/polotosofesegapigixo.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/76745785495.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/samof.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_off000060b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B3 5112 bytes
SHA-256: 2653e62474f387b827603d19d3f74ee5bcb7ea704864fc52a7a02840c32caa66
font_01_sfnt_off00007218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7218 10896 bytes
SHA-256: 65eead2a2923bbf9f075cb41a6837cc3ebfec5af842bc6848337cdc631f9c87b