Malicious PDF — malware analysis report

Static analysis result for SHA-256 425101015f82babb…

MALICIOUS

PDF

252.5 KB Created: 2022-01-22 20:32:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: c3e2897401133a9d51b081ca2b672ba7 SHA-1: 6d942418e0a958d0cc3e4c66a0e5508e6568144e SHA-256: 425101015f82babbc3a48c514334caaebbd1b68b7baff0f98d3041c9ed29a395
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7417

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.
  • 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://kimandyoo.com/userfiles/file/93167538591.pdf In PDF document text
    • http://master-sign.ru/ckfinder/userfiles/files/83744401108.pdfIn PDF document text
    • http://gayaarchi.com/userfiles/file/20211029162444.pdfIn PDF document text
    • http://abrushfire.com/kcfinder/upload/files/sobamawibetezidipenuzozep.pdfIn PDF document text
    • https://kampusogrenciyurdu.com/file/3961411678.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1616d96ef7b8ea---94582736163.pdfIn PDF document text
    • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/6e58655e001b932c14563cf66cb2f1f4/80491897293.pdfIn PDF document text
    • https://west-holding.com/userfiles/file/70859760887.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1616b4c4943b18---79011515039.pdfIn PDF document text
    • http://garage-fuji.jp/js/upload/files/44154396663.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/vuenbrv2upmjcttmbqfoo0qq6k/pexijutufog.pdfIn PDF document text
    • http://buyyoutubelikes.com/ci/userfiles/files/ribewizovakawisasorarexej.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/gneh4km205c696q3262b1d6oal/96948343271.pdfIn PDF document text
    • https://lengthening-sldf.com/userfiles/file/werurariwepemutudodaxe.pdfIn PDF document text
    • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613962fc8bb33---62471982151.pdfIn PDF document text
    • http://studioguagnoni.it/userfiles/files/39188407503.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e6ef27774ba---81925106148.pdfIn PDF document text
    • http://ithalattagarantibelgesi.com/resimlerfiles/danavimev.pdfIn PDF document text
    • http://3gr-group-com.gbintl.com/ci/userfiles/files/zezobalixekisixadidilux.pdfIn PDF document text
    • http://neo-net.info/giganet/files/file/pafubulunas.pdfIn PDF document text
    • http://cedule-plachty.cz/files/file/jewujo.pdfIn PDF document text
    • http://dwornawodzie.pl/userfiles/file/tetunotitiret.pdfIn PDF document text
    • https://360clothing.in/home/www360cl/public_html/uploads/images/files/62402749183.pdfIn PDF document text
    • http://cheliabinsk.realxenon.ru/uploads/files/20623080624.pdfIn PDF document text
    • http://freeacademy.edu.ge/kcfinder/upload/files/9843303041.pdfIn PDF document text
    • http://kursadowicz.pl/Upload/file/44760689249.pdfIn PDF document text
    • http://yonetim.e-cari.com/upload/files/liwogukum.pdfIn PDF document text
    • http://rendszerguru.hu/admin/kcfinder/upload/files/40408362561.pdfIn PDF document text
    • http://bwlpsalisbury.com/uploads/files/91359558036.pdfIn PDF document text
    • https://veronikavilla.hu/userfiles/file/91483615312.pdfIn PDF document text
    • https://yam-token.com/business_school/uploads/file/ziperumaxanusubaledor.pdfIn PDF document text
    • http://rideabikenews.com/user_img/files/88959757220.pdfIn PDF document text
    • https://www.wunderlandovi.hu/kcfinder/upload/files/napiterefetetikakumebade.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/RhDyTiV0TgQ/uplcv?utm_term=biology+lab+homeostasis+and+exercise+answersPDF 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_off00037cef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37CEF 20252 bytes
SHA-256: 311af1ea6b75af96ff742138f2e5ae2cb3bd4d231ad3dcddd81673d25ce899c6
font_01_sfnt_off0003b128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B128 11312 bytes
SHA-256: 9221e04b500b5801637cee4ce894f387ef22415197eb20aed926727b81fd2c0a
font_02_sfnt_off0003cb80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CB80 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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