Malicious PDF — malware analysis report

Static analysis result for SHA-256 18af668b0a7573f3…

MALICIOUS

PDF

75.3 KB Created: 2022-04-24 17:34:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: c87ef4f1e54d58714a2736173ae51b08 SHA-1: 21db5bd7b5b3f14383fffb5bef74d6cca059f5c9 SHA-256: 18af668b0a7573f3191dc69834563fff8538526c9812440c6149b7b148b16b94
159 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://newabel.com/ckfinder/userfiles/files/bedamev.pdf In PDF document text
    • http://atad.ae/emanager/assets/ckeditor/plugins/kcfinder/upload/files/97487698132.pdfIn PDF document text
    • http://obras.ru/sites/default/files/uploads/58092662218.pdfIn PDF document text
    • http://herbier.musee-oberlin.com/img_db/zakawaf.pdfIn PDF document text
    • http://elitvorota.ru/f/file/baxugomovilizisewis.pdfIn PDF document text
    • http://nuraski.pl/wsg/userfiles/xekimowigalilite.pdfIn PDF document text
    • http://italiangreyhound.pl/img1/userfiles/file/somowitedenogobuwiwoxus.pdfIn PDF document text
    • http://alnadaoil.com/userfiles/file/82691962589.pdfIn PDF document text
    • https://tskrea.com/userfiles/file/buwijaxezimubevefilid.pdfIn PDF document text
    • http://faceconnects.com/ci/userfiles/files/kinonefu.pdfIn PDF document text
    • http://igabana.com/upfolder/e/files/20220303071006.pdfIn PDF document text
    • http://edbiji.com/uploads/files/20220321201423_562091.pdfIn PDF document text
    • http://cplust.com/upload/serback/files/20220212105527.pdfIn PDF document text
    • https://malabarmail.com/ckfinder/userfiles/files/18957700024.pdfIn PDF document text
    • https://ijfbacknumber.com/editor_up/65594768305.pdfIn PDF document text
    • http://cariboo.simplywebeditor.com/site-uploads/73258838022.pdfIn PDF document text
    • https://vandolderskb.com/images/usr/89901080000.pdfIn PDF document text
    • http://nt-module.ru/ckfinder/userfiles/files/pivowonu.pdfIn PDF document text
    • https://wmu24.ru/media/file/jetam.pdfIn PDF document text
    • http://www.corazondelsol.es/ckfinder/userfiles/files/movisilejawu.pdfIn PDF document text
    • http://www.weilandensemble.nl/ckfinder/userfiles/files/sujikufipigikuxowirusus.pdfIn PDF document text
    • http://bbbo.handyfriendship.com/upload/files/35770386477.pdfIn PDF document text
    • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/3165728c01a34629b9b2fd540ba87aa4/subonases.pdfIn PDF document text
    • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1623a59c685ab7---47065245256.pdfIn PDF document text
    • https://podar.co.za/YmrXLWy8?keyword=twilight%20saga%20full%20movie%20download%20in%20hindi%201080pPDF 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 extracted file (font_00_sfnt_off0000bddb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bddb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDDB 11440 bytes
SHA-256: 1852e780eb14c98196d8058f7c45747d18d51b58770b0d425c13079aec89a967
font_01_sfnt_off0000d89e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f0b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B0 17872 bytes
SHA-256: 540dd95cfee83df5a97eab3a8b472c68cd1dda540e60007ad9bba437060183a3