Malicious PDF — malware analysis report

Static analysis result for SHA-256 1918e05c732154df…

MALICIOUS

PDF

32.1 KB Created: 2020-10-04 11:47:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 13ceca27e6f9b0398b2b75d29dc9e884 SHA-1: 4ac159f1eddaa78a6a0f0fd2703bade94627d7d9 SHA-256: 1918e05c732154dfb15c18144e52bc3bebd607e6722e0ee9b23f3f51ac60034d
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/strik?keyword=hsbcnet+user+guide In PDF document text
    • http://wineju.ahava-project.com/uploads/1/3/1/4/131437615/lutitenibopul-lenetakerutanob-nidunotep.pdfIn PDF document text
    • http://files.ekoforteang.net/uploads/1/3/1/3/131379117/aa3f77.pdfIn PDF document text
    • http://dejegi.megandaloz.com/uploads/1/3/0/7/130775851/2d10e0a9356c.pdfIn PDF document text
    • http://sidugaza.marshallterrace.org/uploads/1/3/0/7/130739344/kowezobotilajolaj.pdfIn PDF document text
    • http://files.asktrainingsource.com/uploads/1/3/1/3/131379253/sugewuzudisepeposiwi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f2dc88e-b98d-4e14-97d6-b936293ef817/fulojariri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64b9638e-33fc-4540-8f37-6850478d814f/59754844936.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/643bdba3-20af-4111-b845-e9a566c1b24f/juvanagoroja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53835bd3-6f6d-45e6-a5d6-d1997c8cb396/wejagugofemanef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/797384b4-bdfd-48b3-a7cc-e163cab1b64a/lulaxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a38c956-6390-447d-9fef-0b9475a5506f/45763311432.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e430f8bf-c804-4831-84e3-0ad5fe0de2e6/pizasaposobusidudu.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_off000042b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42B1 4968 bytes
SHA-256: 09718d27a0b12a2aa4f25db9b3be016eb52abee4c4aecfe5399a17bef5339eb2
font_01_sfnt_off0000539c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x539C 9528 bytes
SHA-256: fb387cea710bbdce43fa4729723ab2359373b1a4b726213b4c328bb417f8e2a6