Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fb9014a06e0570…

MALICIOUS

PDF

74.0 KB Created: 2022-05-16 09:26:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 2b76156f5f9d9bfd241b481ef09ef1d8 SHA-1: 2953ad418ad3e3772b011d28be1b7dcedeb30af4 SHA-256: a4fb9014a06e05707d027117f7cfb1023f37a351123365600aa6630d09c8acaf
194 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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://lovig.co.za/YmrXLWy8?keyword=5th%20grade%20math%20worksheets%20with%20answers%20pdf%20downloads%20word%20games%203rd PDF link annotation
    • https://zifevenexi.weebly.com/uploads/1/3/4/5/134528386/63d7c9f9.pdfIn PDF document text
    • http://marsalanoleggio.it/userfiles/files/resugabaxelekobebofixeb.pdfIn PDF document text
    • https://mediwamogapani.weebly.com/uploads/1/3/5/3/135318379/c4744975ecbf60.pdfIn PDF document text
    • https://www.cvr2021.scrs.in/kcfinder/upload/files/51044581697.pdfIn PDF document text
    • https://talibixakezadep.weebly.com/uploads/1/3/4/5/134590085/jadapupusuwu.pdfIn PDF document text
    • http://anexbd.com/assets/ckeditor/kcfinder/upload/files/79475676678.pdfIn PDF document text
    • https://tekujutiwud.weebly.com/uploads/1/3/4/2/134234893/5193126.pdfIn PDF document text
    • https://memesuxiti.weebly.com/uploads/1/3/4/6/134635319/tumonofuxomalizel.pdfIn PDF document text
    • https://medisavepa.weebly.com/uploads/1/3/0/8/130815026/sozizop_xatejerupeti.pdfIn PDF document text
    • https://sisubovutajad.weebly.com/uploads/1/3/4/7/134723402/morodokebexoj.pdfIn PDF document text
    • https://zozovuxogufeduw.weebly.com/uploads/1/3/4/7/134766710/4964099.pdfIn PDF document text
    • https://wenewosu.weebly.com/uploads/1/3/4/2/134266389/6602741.pdfIn PDF document text
    • https://wonusawe.weebly.com/uploads/1/3/4/4/134481200/1927642.pdfIn PDF document text
    • https://lenarevir.weebly.com/uploads/1/4/1/4/141474722/disilukub-satav-narol.pdfIn PDF document text
    • https://zosekofafome.weebly.com/uploads/1/3/4/5/134595162/28cf19a.pdfIn PDF document text
    • https://sedarujewajoto.weebly.com/uploads/1/3/0/9/130968957/bawopunefi.pdfIn PDF document text
    • https://dolomepo.weebly.com/uploads/1/3/4/3/134355842/kidulerogefure.pdfIn PDF document text
    • https://xumexutibivuw.weebly.com/uploads/1/3/2/6/132680998/424fe0c86ee6.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_off0000bb34.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bb34.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB34 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD346 16700 bytes
SHA-256: 27e464dce3ed5bbfbeabc00d3c9bfe8506a0904f0866ff782118d42f762e5dc3
font_02_sfnt_off0000fecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFECC 11332 bytes
SHA-256: a867a7114f08b9dbe569cb4730f3122a12ed3ba57608f0e6cc6a2fb85d99dc59