Malicious PDF — malware analysis report

Static analysis result for SHA-256 634aae6802c0d621…

MALICIOUS

PDF

77.1 KB Created: 2022-05-12 20:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 9799ffe8bc1ed3a18663e8d6a03337a3 SHA-1: 9eb51c7b101ce333716c3f51ca18c0e6427ee5c2 SHA-256: 634aae6802c0d621625b71ec55816b25637a8cf836bad4e7e314d0bb459704e8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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://wirut.co.za/YmrXLWy8?keyword=police%20car%20printable%20coloring%20sheets%20printable%20kids%20printable%20coloring%20pages PDF link annotation
    • https://vekukedabil.weebly.com/uploads/1/3/4/7/134710008/35267efb227.pdfIn PDF document text
    • https://jefiwoso.weebly.com/uploads/1/3/5/9/135996081/bujutun.pdfIn PDF document text
    • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/4367bf089f63702bde7843602bc613a3/19555747487.pdfIn PDF document text
    • https://kowumawadixowiv.weebly.com/uploads/1/3/4/8/134888970/35dd156b.pdfIn PDF document text
    • https://lobusejorul.weebly.com/uploads/1/3/5/3/135338183/5612702.pdfIn PDF document text
    • http://winagain.co.za/kcfinder/upload/files/67185351114.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1623075b481c79---letenazifowisuzewogoko.pdfIn PDF document text
    • https://maparezoja.weebly.com/uploads/1/3/5/3/135321508/rimetu.pdfIn PDF document text
    • https://tivagojeno.weebly.com/uploads/1/3/4/7/134714391/2560399.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1621939c8141a7---15555401214.pdfIn PDF document text
    • https://falerelijiwega.weebly.com/uploads/1/3/4/6/134612416/gepoxaj.pdfIn PDF document text
    • https://suzikotelun.weebly.com/uploads/1/3/4/5/134529630/bigose.pdfIn PDF document text
    • https://www.escolamacrobiotica.pt/backoffice/assets/js/kcfinder/upload/files/44192072930.pdfIn PDF document text
    • https://xovutonajimefaf.weebly.com/uploads/1/4/1/4/141486090/57a05b971.pdfIn PDF document text
    • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/561cea00dfbe3fc5c87bd8e3be7d7c2d/kafugexava.pdfIn PDF document text
    • https://veketavutaro.weebly.com/uploads/1/4/1/5/141517696/2550547.pdfIn PDF document text
    • http://www.ih-consultant.com/ckfinder/userfiles/files/67938627621.pdfIn PDF document text
    • https://kororopimebopam.weebly.com/uploads/1/3/4/6/134645688/26b82b28f4.pdfIn PDF document text
    • https://bocorapagacor.com/contents/files/2200889314.pdfIn PDF document text
    • https://bifigurodokew.weebly.com/uploads/1/4/1/5/141568193/topodadub.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_off0000c7df.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c7df.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7DF 16336 bytes
SHA-256: d3db5ceb7bca2a2274a94c20ae6132a7647a526fcd6ab85f03c073a829702dfd
font_01_sfnt_off0000f1ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1CA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000109e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109E1 11024 bytes
SHA-256: 66db20c98380428a96ea258e315ac67e14ba562437b78415466d7106839288a2