Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3856c0adc348b2…

MALICIOUS

PDF

77.6 KB Created: 2022-04-10 05:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-16
MD5: 8863bb07589a1288a7cc98aaff6e8f99 SHA-1: 4444d1ff1fece7b6f4652ec49dbba0d7a3a94734 SHA-256: 5d3856c0adc348b240fd508ae1c126563bb8bd2476852db82978f73948767277
211 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://fecuq.co.za/YmrXLWy8?keyword=emerson%20nature%20analysis%20chapter%201 PDF link annotation
    • http://trailerdepot.ca/site-uploads/xedukozoruvemi.pdfIn PDF document text
    • https://triosms.com/userfiles/file/34683591950.pdfIn PDF document text
    • https://tewonubipudi.weebly.com/uploads/1/3/6/0/136016370/b82fda2ea5.pdfIn PDF document text
    • https://bimuwalunamen.weebly.com/uploads/1/3/1/3/131384226/sugevabudifitarul.pdfIn PDF document text
    • http://kytero.com/admin/kcfinder/upload/files/tejekanaval.pdfIn PDF document text
    • https://femanutokit.weebly.com/uploads/1/3/3/9/133999532/028f89c13917.pdfIn PDF document text
    • https://supratrend.hu/images/fck/files/futalatasunixura.pdfIn PDF document text
    • http://nhakhoasaigonkimcuong.com/uploads/images/files/wijed.pdfIn PDF document text
    • https://nizirukubarilaf.weebly.com/uploads/1/4/1/2/141260001/5006554.pdfIn PDF document text
    • http://kleinschaden-expert.de/userfiles/file/kajipusinonumefuduvumuta.pdfIn PDF document text
    • https://xaxusadusu.weebly.com/uploads/1/3/4/4/134497069/lezipevigonaj-funekisekerev.pdfIn PDF document text
    • http://lctrading-gmbh.com/ckfinder/userfiles/files/takimanokasax.pdfIn PDF document text
    • https://autoprofi.ua/userfiles/file/giruzelugexuvuposukomubik.pdfIn PDF document text
    • https://jeboxuxu.weebly.com/uploads/1/3/2/7/132710743/tuzoze-gikubukefuvubuw-palewigebe.pdfIn PDF document text
    • http://systempro.kr/userData/board/file/75751717721.pdfIn PDF document text
    • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1621eeee92d5e7---lijudopesisikejisuki.pdfIn PDF document text
    • https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/16221b5d3bb711---52866782847.pdfIn PDF document text
    • http://ags-sib.ru/ckfinder/userfiles/files/50087075907.pdfIn PDF document text
    • https://napuguzexavuzes.weebly.com/uploads/1/3/4/8/134875267/dukawubumaje.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000caf1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000caf1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000caf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAF1 16812 bytes
SHA-256: 8612504ca42fe5c969a1af4b9069b031179bc6b5ee81c2fc05ce5ab79b519f5d
font_01_sfnt_off0000f6dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6DC 10888 bytes
SHA-256: 76d6e67070e2e058ea608d99f8b5a93844675299ce740cc37dda56e550e09665
font_02_sfnt_off00010fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FEC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1