Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcf307459ab7b44…

MALICIOUS

PDF

52.3 KB Created: 2020-10-23 08:55:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: 9b84ef536e0760551018f074126a0822 SHA-1: c7baf9f95055fffe2c32cf59933422ce6ffa1372 SHA-256: 1dcf307459ab7b44cecd7f0034bae71af9cbcb29f73deff512e073a9ebfd66f4
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://cctraff.ru/wb?keyword=cambio%20climatico%20en%20bolivia%202018%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4377647/normal_5f90acd3c3d34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367271/normal_5f884a5b0de3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382430/normal_5f8d8807d1b5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376600/normal_5f8a6dce85546.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/xeniwuka_mafevolozediz.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/3731638.pdfIn PDF document text
    • https://varipejat.weebly.com/uploads/1/3/0/7/130739080/9c26ad.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/8168741.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/mexufukuxu.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/kifegologoteve_tumuzibidobum_wofofe_farijenujole.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/d8edb770-fd89-40cd-b033-cd5ddabd282b/87277167067.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64c53c04-fced-4e28-b736-84df2663f09f/90031520289.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2baf48f3-472c-4a59-a8a4-9c6b2e636e7f/63464150626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5587/3190/files/10649974224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6080/3237/files/the_santa_clause_snow_globe_replica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/9972/8293/files/akira_toriyama_art_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/9781/5717/files/synonyms_for_question_and_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3965/2516/files/47782305914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4058/3061/files/lurazesirusudikaketud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5411/8550/files/neratotumasurijubavewezur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/2199/2599/files/visual_and_auditory_memory_deficits.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8863 5652 bytes
SHA-256: cdc69cc3ef564bf0bf137948c342e47b601ef051c8a6c071c1423e5648fac5b9
font_01_sfnt_off00009b98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B98 11932 bytes
SHA-256: b8c899172ef709e52ef7d966b53c0d2856df06013139907b7079123717d520ef

Open this report in the interactive analyzer, or submit your own file for analysis.