Malicious PDF — malware analysis report

Static analysis result for SHA-256 18ac80fe8e3edb77…

MALICIOUS

PDF

362.9 KB Created: 2021-12-22 16:59:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: 992872b43eba79426022768341567547 SHA-1: b4129843a6dae24455086c4f622ce88fa39b7bcd SHA-256: 18ac80fe8e3edb77a005cfe6b386f0289fcb31bc1db8900735df517307f1c26c
221 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6933

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
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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 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 http://x-mobio.com/upload/files/40715869592.pdf In PDF document text
    • http://apartamentgizycko.pl/files/file/96808783603.pdfIn PDF document text
    • https://indreninepal.org/userfiles/file/pajutatiworijibifoxuzu.pdfIn PDF document text
    • https://jatransfer.com/userfiles/file/lezufi.pdfIn PDF document text
    • https://dewalt-naradi.cz/media/upload/editor/file/puvijozubabome.pdfIn PDF document text
    • https://cometsecurity.in/admin/userfiles/file/dabuxoderejujemupax.pdfIn PDF document text
    • http://matsonconstruction.net/userfiles/file/jilidek.pdfIn PDF document text
    • http://bioident.pl/photos_fck/file/nivafiguguropono.pdfIn PDF document text
    • http://peter-scherer.de/userfiles/file/46644888263.pdfIn PDF document text
    • https://balatonfurediallatorvos.hu/userfiles/file/90546953693.pdfIn PDF document text
    • http://ajarnveerapong.com/UserFiles/file/dasab.pdfIn PDF document text
    • http://oilspecchem.com/files/runazid.pdfIn PDF document text
    • https://eletvital.hu/uploads/files/50783622137.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/f42e91c681b17039586dc13a0837fab9/xonaruwisekofisodinuta.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/6ab744a4df154f78eb71b6d989b572c2/16795762799.pdfIn PDF document text
    • http://klavierunterricht-bergedorf.de/files/files/fikudulomule.pdfIn PDF document text
    • https://rubfila.in/files/file/2716897872.pdfIn PDF document text
    • https://holycrosshealthcare.com/userfiles/files/gisomobata.pdfIn PDF document text
    • http://quantri.thaisonpalacehotel.com/upload/files/9364829885.pdfIn PDF document text
    • https://www.mvfht.ca/kcfinder/upload/files/90935230981.pdfIn PDF document text
    • http://hueide.com/upload/files/79488166533.pdfIn PDF document text
    • http://specialcats.nl/media/files/17250612037.pdfIn PDF document text
    • https://www.zwaanshoek.info/gibreto-cms/xcrud/editors/kcfinder/upload/files/17110822691.pdfIn PDF document text
    • http://airconbank.com/upload/fckeditor/file/pizipuxoxur.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/oscUj7J0Gjw/uplcv?utm_term=the+valley+of+flowers+class+4+worksheetsPDF 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_off00053fbe.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00053fbe.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053fbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53FBE 10636 bytes
SHA-256: c169a373f86feeef516f35800d9647349e363b43e599304ea78abdbcff020e12
font_01_sfnt_off00055872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55872 17596 bytes
SHA-256: 6d38a31ed9025980024f489a4ee2bdfe19c8255f4450fc4e909af6db48537a11
font_02_sfnt_off000585ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x585AC 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336