Malicious PDF — malware analysis report

Static analysis result for SHA-256 af24c3ca6b1ec4b7…

MALICIOUS

PDF

135.8 KB Created: 2021-11-11 06:51:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 34ef80eeaad736f5e84d29ca6579c1d5 SHA-1: dc2f90ead9b46f65a4eb3595fa2e8e1ebb7439b0 SHA-256: af24c3ca6b1ec4b78f1412824994840a52714d5640e4f8539f84cf615713165c
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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 http://vncdata.net/app/webroot/uploads/files/9087783961.pdf In PDF document text
    • https://giorgiosantinelli.it/file/wiludigigabawafelef.pdfIn PDF document text
    • http://ozona.pt/js/fckeditor/editor/filemanager/connectors/wysiwygfiles/file/vutonowavirokadenizo.pdfIn PDF document text
    • https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/b541572b3cc48011aac1ebc2590d5652/41342716762.pdfIn PDF document text
    • https://mimpiindah168.com/contents/files/lelurofelosaloz.pdfIn PDF document text
    • https://cochleartudaskozpont.hu/files/xiwupizemaxuzitevudoz.pdfIn PDF document text
    • http://euredit-editions.com/userfiles/file/gominomu.pdfIn PDF document text
    • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/e602qq6jrrr41jtgfkd2jd32vr/15277917537.pdfIn PDF document text
    • http://brainbond.ro/userfiles/file/binikatixuwisonutediruli.pdfIn PDF document text
    • http://riph.pl/userfiles/file/labopiduvudegij.pdfIn PDF document text
    • https://griffithnorthsideapartments.com/ckfinder/userfiles/files/dasoluserexu.pdfIn PDF document text
    • https://www.savininkai.lt/ckfinder/userfiles/files/revupisupoxenoxozidot.pdfIn PDF document text
    • https://www.tahitotfaluovodak.hu/ckfinder/userfiles/files/91682435662.pdfIn PDF document text
    • http://ain.proximeo.com/ckfinder/userfiles/files/18278648733.pdfIn PDF document text
    • http://studiovalecchi.it/userfiles/files/lavubepufasena.pdfIn PDF document text
    • http://ensky-chemical.com/upload/files/virojevafujakefurizesixa.pdfIn PDF document text
    • https://mklaw.trakhes.com/dir-eg/dalel-eg/userfiles/file/99010965955.pdfIn PDF document text
    • http://whipitleather.com/userfiles/file/lagapiguda.pdfIn PDF document text
    • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/632b85ae83831694900a09da8393fa95/pifamaretaw.pdfIn PDF document text
    • https://verlauf-ekb.ru/admin/ckfinder/userfiles/files/33312760253.pdfIn PDF document text
    • http://riskhedgetech.com/uploaded/file/2052278019616bdb8aafb83.pdfIn PDF document text
    • https://www.naabelectric.com/userfiles/files/56182369268.pdfIn PDF document text
    • http://trungnguyenjsc.vn/uploads/image/files/wazikirosazimenajovaxifa.pdfIn PDF document text
    • https://walnutcreekguide.com/wysiwygfiles/file/30954028055.pdfIn PDF document text
    • http://lnv-cnc.gr/userfiles/file/56148464297.pdfIn PDF document text
    • http://habitat3.eu/userfiles/files/xoduzinapide.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/EqozwcbAC44/uplcv?utm_term=harry+potter+and+the+philosopher%27s+stone+pdf+fullPDF link annotation
    • 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_off0001aeb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AEB5 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_01_sfnt_off0001c5d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C5D6 18864 bytes
SHA-256: 4232fa5028a1e6a4404955145def1c6cde7ca8357bcbb299aef514cf5fe8f6b1
font_02_sfnt_off0001f7b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F7B0 10832 bytes
SHA-256: 48e90bf5f2f6ec9e9ba224436d92b1f0f668a7f68ef1fe8caae347194364152a