Malicious PDF — malware analysis report

Static analysis result for SHA-256 478c3e659cdc1124…

MALICIOUS

PDF

83.4 KB Created: 2022-04-05 22:27:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 89d940402724d2cf52d39a674890b23a SHA-1: 8e96068ded37ed14a31f2ac58d06c017b5eae9b3 SHA-256: 478c3e659cdc1124781ed47c8273cbe9246e825bf96730bc35c04a17934c8177
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://sunuf.co.za/YmrXLWy8?keyword=entry%20level%20media%20job%20salary PDF link annotation
    • https://zaxonuwikujad.weebly.com/uploads/1/3/0/8/130874627/tiralezimimorakesi.pdfIn PDF document text
    • https://vinawulisakuj.weebly.com/uploads/1/3/2/7/132712505/vudemimeweno.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16205a7c84b37b---juxeroruron.pdfIn PDF document text
    • http://pataibicaj.hu/userfiles/file/52961637690.pdfIn PDF document text
    • http://thoitrangvabaoho.com/Images_upload/files/55595408618.pdfIn PDF document text
    • http://www.louervendreaumaroc.com/kcfinder/upload/files/5352747608.pdfIn PDF document text
    • https://ferezarital.weebly.com/uploads/1/3/4/8/134862234/rimitofesak.pdfIn PDF document text
    • http://xn----7sbakn3aoflleitf3m6a.xn--p1ai/userfiles/file/koxamaromezadomerujiv.pdfIn PDF document text
    • https://www.jakketoes.be/ckfinder/userfiles/files/31208950298.pdfIn PDF document text
    • https://wededizopi.weebly.com/uploads/1/3/3/9/133986349/sipigetabupuva.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16228c15665116---dunivox.pdfIn PDF document text
    • https://mugafexuwap.weebly.com/uploads/1/4/1/2/141287884/mobatufoxotexa_nijafedaxorere_poxuzof.pdfIn PDF document text
    • https://promobryansk.ru/userfiles/files/71833056624.pdfIn PDF document text
    • https://kojexewo.weebly.com/uploads/1/4/1/2/141218478/5457861.pdfIn PDF document text
    • http://cityyeast.com/userfiles/file/xejodulifojuzuzuwasujos.pdfIn PDF document text
    • http://ekonomiyonetimivepazararastirmalarikongresi.reklam.cc/FCKeditor/editor/filemanager/connectors/userfiles/file/sobedoratogovulawu.pdfIn PDF document text
    • https://xojexibawetu.weebly.com/uploads/1/3/4/3/134361221/kijifasa-dakokaguva-lubamivunuse.pdfIn PDF document text
    • https://webhosting4.net/media/file/nodutezufazajuxi.pdfIn PDF document text
    • https://xejotonevuxujuj.weebly.com/uploads/1/3/1/3/131379732/xofabebevuso.pdfIn PDF document text
    • http://www.federacja.krakow.pl/uchwaly/kcfinder/upload/files/17375581318.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE191 17196 bytes
SHA-256: b700fa7b175539a8754be47d87eff7a53f561622da5e9f0248012c384e345088
font_01_sfnt_off00010ec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EC5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000126dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126DC 10844 bytes
SHA-256: 8621a0cd1a2cae3cd03abebccab12c0d9549a2f1db106e3ace69e4cc44662059