Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd741581aa8bd629…

MALICIOUS

PDF

332.0 KB Created: 2022-02-06 12:17:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: e6747263d8bec8831282b40653d279c4 SHA-1: 5e841ea502fbf8aa05dfbf64f483267601b8edc8 SHA-256: cd741581aa8bd6295622089af7ed1950210db28f4be1b679ee4d85ccdc640b5c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2722

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
  • 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.
  • 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://colod.co.za/XSRYdR1H?utm_term=appsync+unified+deb PDF link annotation
    • http://ambvetesopo.eu/userfiles/files/70530823565.pdfIn PDF document text
    • https://fallsplat.se/file/55647629667.pdfIn PDF document text
    • http://ijdssymposium.eu/upload/vetijipufaxaduxufa.pdfIn PDF document text
    • http://toyotarent.tw/FileData/ckfinder/files/20210911_7D167584135B2F34.pdfIn PDF document text
    • https://elpollopaulino.com/cenavarra_userfiles/files/67133883812.pdfIn PDF document text
    • http://brackenpaving.com/files/bijas.pdfIn PDF document text
    • http://haliburtonhighlandsheritage.ca/userfiles/file/dazanilobewotu.pdfIn PDF document text
    • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619c39f601f8f---ripelidukebosipasowe.pdfIn PDF document text
    • http://2016.letnifestiwal.pl/ckfinder/userfiles/files/24428688831.pdfIn PDF document text
    • http://gurgaontaxi.com/pa/trainstation/uploads/image/file/tamusufilo.pdfIn PDF document text
    • http://mascotdd.com/file_media/file_image/file/89489510625.pdfIn PDF document text
    • https://gagasanriau.com/a450d92cb6be01b3b3669c18bfca7901/kcfinder/upload/files/netuginoziwizunuwegepim.pdfIn PDF document text
    • https://insetclean.com.br/kcfinder/upload/files/kunelazanijojopoxowepe.pdfIn PDF document text
    • http://vnpt247.com/ckeditor/kcfinder/upload/files/70613048364.pdfIn PDF document text
    • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/898347c8f0082560ccf157255f4819e8/60337519192.pdfIn PDF document text
    • https://lanegarrett.net/userfiles/file/77883015621.pdfIn PDF document text
    • https://studio-mano.com/userfiles/file/5326749865.pdfIn PDF document text
    • https://pinkrali.com/calisma2/files/uploads/83570824601.pdfIn PDF document text
    • http://colorfulmedia.de/fotki/fotki/file/74505155623.pdfIn PDF document text
    • https://asiastudy.in/ckfinder/userfiles/files/kanuw.pdfIn PDF document text
    • http://cncsprings.com/d/files/durefenedagixenavadewap.pdfIn PDF document text
    • http://smolensk-bakaleya.ru/userfiles/file/tinoli.pdfIn PDF document text
    • https://esprimagroup.com/userfiles/file/10193522701.pdfIn PDF document text
    • http://irinaburmistrova.ru/files/rowibodijoxi.pdfIn PDF document text
    • http://abb-impuls.su/kcfinder/upload/files/16394382749.pdfIn PDF document text
    • https://globalcareerclub.com/FCKeditor/userfiles/file/sujizetoxojogisibed.pdfIn PDF document text
    • https://kor.mycultureis.com/FileData/ckfinder/files/20211109_D7CD2FBC4E240D0A.pdfIn PDF document text
    • http://casier-a-bouteilles.fr/file/pebopidif.pdfIn PDF document text
    • https://snapstudios.ca/userfiles/file/powozosurotoziponewawu.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c293d0d37e8---xuziluwomojurotowizigamuz.pdfIn PDF document text
    • http://2222.netsociality.com/upload/files/texumidepobulutakewejo.pdfIn PDF document text
    • http://nanumed.ro/uploads/files/jelumof.pdfIn PDF document text
    • http://conomiya.com/images/uploadedimages/file/10854429364.pdfIn PDF document text
    • https://gruppopolidori.com/upload/image/file/10129167100.pdfIn PDF document text
    • http://confidenceagricare.com/assets/ckeditor/kcfinder/upload/files/75091727240.pdfIn PDF document text
    • http://www.waetsukai.jp/system/ckfinder/userfiles/files/7276464505.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004845c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4845C 26648 bytes
SHA-256: 0a523f3bdaa2942012e5c37556b49befb59081a703af9f3a3ff2aa11f8a05339
font_01_sfnt_off0004bd89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BD89 1776 bytes
SHA-256: e0b421e0f4872561da2541c6efb0ecad4ae589ecdf6876179abed4dadb8039fe
font_02_sfnt_off0004c5fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C5FC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off0004dd27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD27 10424 bytes
SHA-256: 9bb86a31ac75eff1606b13517e7fb52ea7d110792e5216f1012f76f9158159cb
font_04_sfnt_off0004f4c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F4C2 8952 bytes
SHA-256: 084aba20f45b3af06b7ac479f9c47f2f4f04d28e681e3ec8c8cf5ce34a72f99a
font_05_sfnt_off00050728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50728 16076 bytes
SHA-256: b79b5b783f9f2750fb1a468c37c2e1239a95587a9898e49e55e45fafda568ad2