Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff2bdc1eb61e53db…

MALICIOUS

PDF

82.7 KB Created: 2021-10-14 08:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: c992c5d9606616ebd8cbb590cf0cc4a1 SHA-1: cb4b97d6cdd68e7b4e883db44c8d2bf37316c61f SHA-256: ff2bdc1eb61e53dbb96a11a9d2f33b032cfb6e3530f4365740cf7138617cf758
151 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • 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.
  • 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://automyjka.pl/automyjka.pl/userfiles/file/99443738676.pdf In PDF document text
    • http://waypl.pl/upload/File/31014569808.pdfIn PDF document text
    • http://forma8.kz/ckfinder/userfiles/files/87391894037.pdfIn PDF document text
    • http://ks-klinika.ru/ckfinder/userfiles/files/47987398102.pdfIn PDF document text
    • http://seednseed.com/admin/fckfiles/file/75143722417.pdfIn PDF document text
    • http://thietbiotoviet.com/Images_upload/files/73815888351.pdfIn PDF document text
    • https://wedding-photos.cz/userfiles/file/83812671757.pdfIn PDF document text
    • http://st-johnson.com/Uploadfiles/files/8554355648.pdfIn PDF document text
    • http://goksirlambinowice.pl/img/upload/files/kojosenorelojaperinigupef.pdfIn PDF document text
    • http://sanyosushiglendora.com/uploads/files/3522061843.pdfIn PDF document text
    • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141522686455---16970993787.pdfIn PDF document text
    • http://thaimassagemodel.com/ckfinder/userfiles/files/34446952056.pdfIn PDF document text
    • http://archgeo-leszno.pl/uploads/userfiles/files/bizizexirupedebelovekev.pdfIn PDF document text
    • https://rpaxis.net/userfiles/file/giwedufiketitemolol.pdfIn PDF document text
    • http://zakuskymoser.cz/www/ckfinder/userfiles/files/wedol.pdfIn PDF document text
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155bcc704d15---80237062819.pdfIn PDF document text
    • http://rockhouseschool.com/rockhouse/uploads/files/5847766222.pdfIn PDF document text
    • http://klimagra.pl/images/wysiwyg_img/file/80553629229.pdfIn PDF document text
    • https://www.jancsoalapitvany.hu/ckfinder/userfiles/files/81878755452.pdfIn PDF document text
    • http://rrbrentacars.com/files/others/vefajaxupemedunu.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/23D8k0Ec_6w/uplcv?utm_term=how+to+summon+the+wither+storm+in+minecraft+bedrock+editionPDF 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_off0000d6f1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d6f1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F1 19992 bytes
SHA-256: ebcbac9dc53033d7822f6a50d73fb5ff47a5ac4e9343b2a4017eb34ecbc52136
font_01_sfnt_off00010b07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B07 11104 bytes
SHA-256: 80709a4d94c72c14749f69186e4725cc572e1cdca6f1efcdd94638caaf08073c
font_02_sfnt_off000124c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124C0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1