Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f3731a08def16c9…

MALICIOUS

PDF

369.2 KB Created: 2022-02-14 00:07:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: e3feb0927366177f11149d85e4acb4a7 SHA-1: 7f74604f89b4875ec659ebf72f9ac1b8caf7dfed SHA-256: 5f3731a08def16c9a2dc545582892e07815e30d413c1bbeb36e19d7166ff1fe2
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6452

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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.
  • 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/XSRYdR1H?utm_term=dynasty+warriors+8+weapons+guide PDF link annotation
    • https://sincomerciariospv.com.br/kcfinder/upload/files/12063623731.pdfIn PDF document text
    • https://f27szerviz.hu/upload/files/malabepijitujixuna.pdfIn PDF document text
    • http://casinodanmarkjackpot.dk/userfiles/file/62556832848.pdfIn PDF document text
    • http://serdceprirody.ru/userfiles/file/kufifezokanemogivafibile.pdfIn PDF document text
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/1616e7c6844f6d---tabobibizumabefebametiku.pdfIn PDF document text
    • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/cs5qb7sri4hm1bd94d9es82m36/fujalesufixigodufamuxodo.pdfIn PDF document text
    • https://beaszemin.com/files/turimokidulure.pdfIn PDF document text
    • https://purevdavaa.mn/uploads/ckfinder/files/digapakoketa.pdfIn PDF document text
    • http://etpatatietpatata.com/userfiles/files/94710114833.pdfIn PDF document text
    • http://jungam21.com/upfiles/file/1635876789.pdfIn PDF document text
    • http://ridonhennet.eu/admin/kcfinder/upload/files/jefoteropumawatedex.pdfIn PDF document text
    • http://shopcode.ru/uploads/file/71580605339.pdfIn PDF document text
    • http://kompassztuki.pl/Image/files/dakukevuwe.pdfIn PDF document text
    • http://greffe-cheveux-tunisie.fr/ckeditor/kcfinder/upload/files/95739697033.pdfIn PDF document text
    • https://fvcomputer.orakromania.ro/mm/file/19487387308.pdfIn PDF document text
    • http://krikrik.ru/uploads/ckfinder/files/95192832164.pdfIn PDF document text
    • http://savvyroyalties.com/userfiles/file/tububod.pdfIn PDF document text
    • https://www.krenzle.sk/editors/ckeditor/plugins/kcfinder/upload/files/73284862105.pdfIn PDF document text
    • http://beibarys.com/app/webroot/js/kcfinder/upload/files/1325803394.pdfIn PDF document text
    • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/35478997225.pdfIn PDF document text
    • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/39f1ee87ca4908c567679cb1b50663cf/faxexurevibifotuvogub.pdfIn PDF document text
    • https://elperrocallejero.info/ckfinder/files/kikopivemuvu.pdfIn PDF document text
    • http://foto-klub.dk/userfiles/file/85249705601.pdfIn PDF document text
    • https://rlmahtani.com/userfiles/files/37328511739.pdfIn PDF document text
    • http://27derajat.com/assets/ckfinder/core/connector/php/uploads/files/luvalaruzetupu.pdfIn PDF document text
    • https://trubaopt.ru/content/file/nenim.pdfIn PDF document text
    • https://www.unimedbelem.com.br/painel_template/assets/global/plugins/ckfinder/userfilesfiles/maxabokeborovedin.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_off00053e90.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00053e90.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E90 18412 bytes
SHA-256: e22c9cf8c5587e69bcbaf55944222822017efb8d76ba4a54e1fe88ae77b96a8f
font_01_sfnt_off00056de0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56DE0 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_02_sfnt_off000583e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x583E2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off00059b02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B02 11032 bytes
SHA-256: 22dc568a719b7c1d6a930b3f9aadca8c6e4f7f2bb534da1f46c0e56090b4712c