Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d594719dc775e78…

MALICIOUS

PDF

41.9 KB Created: 2020-10-26 04:28:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-11
MD5: e5266d7e0d93a36f228e9756d577543c SHA-1: db631040b086719fc9f5d22062b4d4f1de802109 SHA-256: 0d594719dc775e78bf3c925aaa201a2435fa2aa8b1f8fd6a8a264d0460a83253
224 Risk Score

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.
  • 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.
  • PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
    PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
  • 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=reaccion+endotermica+y+exotermica+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369659/normal_5f8ce9dfaf488.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376362/normal_5f91010ae0a09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366009/normal_5f8a700adb0c4.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/36550656665.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/punctuation_marks_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/92398541101.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/refazu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380395/normal_5f8e3a00a00d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386334/normal_5f936c8676cf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391327/normal_5f90d5c00f657.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/dogod.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/83907640015.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/roruj-fegedevovelere-zexomojikazi-rewubujelem.pdfIn PDF document text
    • https://luwamagol.weebly.com/uploads/1/3/4/3/134375262/de2a6f.pdfIn PDF document text
    • https://bezebaterizijir.weebly.com/uploads/1/3/1/3/131384714/melapaxubat.pdfIn PDF document text
    • https://vodiwisilob.weebly.com/uploads/1/3/2/6/132681054/lojuguwupax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f91c97acfac8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383929/normal_5f93be44121ed.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000065ae.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000065ae.bin)
    • 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 extracted file (font_00_sfnt_off000065ae.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65AE 5268 bytes
SHA-256: f6ddd51fb3de30f7056e4fc4229fe71d417a5027f9787843b9f3080a269a8e56
font_01_sfnt_off0000778f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x778F 10212 bytes
SHA-256: 385828f9e66d5e2ea691d6e233027ae5d897dd47e035ee45ec25f6b55bf4bf98