Malicious PDF — malware analysis report

Static analysis result for SHA-256 4def261dee5b0688…

MALICIOUS

PDF

475.9 KB Created: 2022-02-10 06:58:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: f730f1ef4ec235af26950d462119cd3b SHA-1: a7afb07f0115549d22a60244cfe03ec76c3a8b45 SHA-256: 4def261dee5b0688bc0ab14fe1ee8bad2ab105ebae9fdc93923d0b9623c3c3da
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5060

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://colod.co.za/XSRYdR1H?utm_term=mp4moviez+chhota+bheem+kung+fu+dhamaka PDF link annotation
    • http://nwatchonline.net/userfiles/file/nagomubabelutowam.pdfIn PDF document text
    • https://thietkeweblongan.com/upload/files/sanilavibabolew.pdfIn PDF document text
    • https://maconlux.ovh/userfiles/files/79523635278.pdfIn PDF document text
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/f8689d118eb9ff10d8673254fc1bc508/30233731034.pdfIn PDF document text
    • https://venusnvs.com/userfiles/file/32369511256.pdfIn PDF document text
    • http://edwindijk.nl/home/edijk/domains/edwindijk.nl/public_html/uploads/file/xateperidake.pdfIn PDF document text
    • http://ukicda.com/admin/fckeditor_upfiles/file/2021072620125380554.pdfIn PDF document text
    • http://msinziniering.com/userfiles/file/tuzofopamawomapotofelo.pdfIn PDF document text
    • https://mintedimages.com/ckfinder/userfiles/files/nupoxifogusevos.pdfIn PDF document text
    • http://gyliver.ru/files/files/tuxamefokuzuzizipatan.pdfIn PDF document text
    • https://fontaine-eva.fr/userfiles/files/fedoweg.pdfIn PDF document text
    • https://cooperspick.com/files/46812328156.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1611b14a218bc1---tobiwegodubisifokuxave.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fb566e34d6e---53477070635.pdfIn PDF document text
    • http://austral-immo.com/userfiles/files/megemizavufubogededo.pdfIn PDF document text
    • https://ecohort.biz/userfiles/files/wexalejebobiw.pdfIn PDF document text
    • https://kede.org/userfiles/file/mefibamukosedarixemun.pdfIn PDF document text
    • https://shriramsteels.in/public/ckfinder/userfiles/files/41279325549.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/16181b8e1177bf---lolopumutabodalutiv.pdfIn PDF document text
    • http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/degawozafikofonomij.pdfIn PDF document text
    • http://yousefmaktabi.com/ckfinder/userfiles/files/pumidaxedaxofaw.pdfIn PDF document text
    • https://anfauglir.com/images/file/13053293062.pdfIn PDF document text
    • http://www.corazondelsol.es/ckfinder/userfiles/files/81274859263.pdfIn PDF document text
    • http://forensique.com/app/webroot/kcfinder/upload/files/xeleletafowixukikaduf.pdfIn PDF document text
    • http://xn--9d0b102a6wc3y4a.com/sa_upload/userfiles/file/20210820031847.pdfIn PDF document text
    • http://severstroysnab.ru/userfiles/file/bazovajebufanijebewaxagin.pdfIn PDF document text
    • http://duancanhotot.com/upload/files/90418787136.pdfIn PDF document text
    • http://iwakuniyumiya.com/js/kcfinder/upload/files/86126654350.pdfIn PDF document text
    • http://cuiquji.net/d/files/giwatetos.pdfIn PDF document text
    • http://moestuinwebshop.nl/userfiles/file/19246768441.pdfIn PDF document text
    • https://daaeportrett.no/upload/file/fibul.pdfIn PDF document text
    • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611ff7aca002c---zinibap.pdfIn PDF document text
    • https://darshanam.com/ckfinder/userfiles/files/32306241543.pdfIn PDF document text
    • http://idroter.org/userfiles/files/45039215103.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_off00070049.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00070049.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00070049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70049 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00071764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71764 18232 bytes
SHA-256: 984bddbebdd41e02550ab149919f5007f0c18ed8963a72cdd12e17290c16e437
font_02_sfnt_off0007456a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7456A 11284 bytes
SHA-256: 4bfc042688d74029552a7839334892dc74b7cd773cbc4517d1a8c8910e8b8170