Malicious PDF — malware analysis report

Static analysis result for SHA-256 dddf389aee4b7da2…

MALICIOUS

PDF

425.7 KB Created: 2022-05-04 13:49:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-16
MD5: ac1dd0efb8e5f5c908628da3636807af SHA-1: 74b4c78cfb44e96a5d9eb22af8d070e39c0003be SHA-256: dddf389aee4b7da2342ee2c395810a67f8e50e2a5a9dc2bf45d9213bfd04af6a
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5841

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://www.wemservice.com/ckfinder/userfiles/files/33204588201.pdf In PDF document text
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/6ln1iuaf4f7gcaed5du8b9vfri/17263569897.pdfIn PDF document text
    • http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/88912047455.pdfIn PDF document text
    • http://tsuyopillar.com/assets/kcfinder/upload/files/79562531142.pdfIn PDF document text
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/89f6aae89668ff65a1fb96dc37eb5a87/lusotibakowi.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/162187bcaf2972---sofatomej.pdfIn PDF document text
    • https://dialogueinpraxis.net/files/docs/zosanufimodazakalad.pdfIn PDF document text
    • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620976f4923f8---bejelemimerivedikokizag.pdfIn PDF document text
    • http://ks-system.co.uk/ckfinder/userfiles/files/fidabozofibukeb.pdfIn PDF document text
    • http://bjdfszwy.com/filespath/files/20220311060421.pdfIn PDF document text
    • http://www.salda.se/saldus/kcfinder/upload/files/25294953359.pdfIn PDF document text
    • http://automyjka.pl/automyjka.pl/userfiles/file/82168643510.pdfIn PDF document text
    • https://quangcaomattroi.com/uploads/news_file/33588455081.pdfIn PDF document text
    • http://arhive.np-sp.ru/img/file/48614043264.pdfIn PDF document text
    • http://overnachteninorvelte.nl/bestanden/files/55916115621.pdfIn PDF document text
    • http://africareview.in/userfiles/file/kaveg.pdfIn PDF document text
    • http://kanoonkaraj.ir/dbmanager/filebank/htmlgallery/file///24088270557.pdfIn PDF document text
    • https://rhuyscampingcar.fr/images/files/dirakako.pdfIn PDF document text
    • https://planet-for-events.de/userfiles/file/15558794732.pdfIn PDF document text
    • https://queensflower.nl/clientfiles/54697582891.pdfIn PDF document text
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/f123cfc641534a749f3ae87e1f5212b4/16822664900.pdfIn PDF document text
    • https://tomaszbizon.tomaszbizon.pl/web/uploads/files/17869288790.pdfIn PDF document text
    • http://9275522-travel.com/userfiles/file/5150488532.pdfIn PDF document text
    • http://tropo-design.com/ckfinder/userfiles/files/tujefemo.pdfIn PDF document text
    • http://www.ascondir.com.br/Gerenciador/kcfinder/upload/files/89278676871.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624bcfb7ad9a8---74123798317.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=citroen+c2+workshop+manual+download+pdfPDF link annotation
    • https://concertwristband.com/resimler/files/gusenokowafujuwejixadolu.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_off0006352f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006352f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006352f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6352F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00064d41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D41 18428 bytes
SHA-256: 21015162ba668819e3cdd2e7661fb0b0f40021e093767fafe225522c0e1a7775
font_02_sfnt_off00067d2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67D2D 11316 bytes
SHA-256: 6941d3bfdc035da15c6d7f6d652084aab85a5f2e95eca27de77376b4d8fb0db6