Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f34bfe42d3d84ee…

MALICIOUS

PDF

301.7 KB Created: 2022-04-08 11:52:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: f8ccd2e0a2f7c3c25aa046ed31c6fa1b SHA-1: 6bb97bea3f3526553a5f52d86fc3fe12fca8e7c5 SHA-256: 5f34bfe42d3d84ee2bbcae9037db3509beabbb5e1175a3783100083608296516
181 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8757

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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://loheb.co.za/XSRYdR1H?utm_term=el+libro+de+la+macrobiotica+pdf PDF link annotation
    • https://badanie-wody.pl/galeria/file/73103142855.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/52406e4151ba1c21496487f9a4fde4f6/bogasanosijukikema.pdfIn PDF document text
    • https://jatoxutobi.weebly.com/uploads/1/4/1/2/141258346/jezadigimudelekow.pdfIn PDF document text
    • https://rodonakerunatep.weebly.com/uploads/1/3/0/7/130740524/36363b5e00d9d10.pdfIn PDF document text
    • https://gertiesbloomers.com/kousumi/nulook/upload/fckimages/file/88242077352.pdfIn PDF document text
    • http://lesboutiquesquercitaines.com/kcfinder/upload/files/37309122856.pdfIn PDF document text
    • https://noragunefide.weebly.com/uploads/1/3/1/6/131637841/limasuxobefisokija.pdfIn PDF document text
    • https://fimelaxezabu.weebly.com/uploads/1/3/4/6/134622198/9241334.pdfIn PDF document text
    • https://geneticapanama.com/userfiles/file/lifebe.pdfIn PDF document text
    • https://vesexifog.weebly.com/uploads/1/3/4/4/134491049/082d9a5a5.pdfIn PDF document text
    • https://sezariserafuf.weebly.com/uploads/1/3/4/6/134673330/xovosixusasokij-garuzepir-vaguruwibux-wowijewo.pdfIn PDF document text
    • http://rungrawin-itt.com/userfiles/files/66568346791.pdfIn PDF document text
    • https://coaching-jk-academic.com/ckfinder/userfiles/files/14267360511.pdfIn PDF document text
    • http://medicare-darmstadt.de/bilder/UserImages/file/87632265538.pdfIn PDF document text
    • https://fugejifok.weebly.com/uploads/1/3/4/1/134132056/5544a3140b45d8f.pdfIn PDF document text
    • https://gulobabamufo.weebly.com/uploads/1/3/4/5/134514795/139322.pdfIn PDF document text
    • https://jagakipu.weebly.com/uploads/1/3/7/4/137498766/f5c5115f0c3.pdfIn PDF document text
    • https://kobotazesesop.weebly.com/uploads/1/4/1/3/141394777/misajagetexi.pdfIn PDF document text
    • http://www.podunajsko.sk/app/webroot/ckeditor/kcfinder/upload/files/92547781782.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_off00044386.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00044386.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44386 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00045b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45B9D 10632 bytes
SHA-256: 5b5e9d2d0301dc05ccd971bf8105a2336ac3cc055528139f3a6a04e3dd6ff150
font_02_sfnt_off000473a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x473A8 20396 bytes
SHA-256: 3652dfe8a555250d78e034e73322771bd3e1e779de90001e385cb8c200db4065