Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0af918dc783a99…

MALICIOUS

PDF

238.6 KB Created: 2022-03-05 05:09:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: a74271985f1930268ffbe7e039d3f875 SHA-1: ad52e31412ade16578421fc5ab4509c8354e9c70 SHA-256: fb0af918dc783a99fcc263aab1dbcebbf8391b80cdb40bebee079cf20a8bfd05
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7348

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 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.
  • 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://vajdasaraegyesulet.hu/kcfinder/upload/files/9281726243.pdf In PDF document text
    • http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/fopetumunamezabezu.pdfIn PDF document text
    • http://coral-travel66.ru/admin/ckfinder/userfiles/files/75642695487.pdfIn PDF document text
    • http://kcemsp.org/upload/editor/file/vajevedefemepitasafofob.pdfIn PDF document text
    • https://maisonfamillesrimouski.com/scripts/php/xenocode/lib/ckfinder/userfiles/files/laxezorelubegamama.pdfIn PDF document text
    • http://kunmobile.vn/files/uploaded/20220210/file/98230382554.pdfIn PDF document text
    • http://kozelsk-adm.ru/files/uploads/files/ragabapuxejomola.pdfIn PDF document text
    • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620004e351d24---nikomukijoruzeravowunamaf.pdfIn PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161fab1fda1586---pakosorapesuxudizuwix.pdfIn PDF document text
    • https://sartor.ru/upload/files/10047068047.pdfIn PDF document text
    • http://vuonlan.vn/data/upload/files/rometofowaforedavij.pdfIn PDF document text
    • http://brillodesol.com.ar/app/webroot/js/kcfinder/upload/files/83126370291.pdfIn PDF document text
    • http://hammaddedunyasi.com/panel/kcfinder/upload/files/70767394372.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1620490709747b---80362863967.pdfIn PDF document text
    • http://pedraferro.com/files/files/bupezalu.pdfIn PDF document text
    • https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/mipozefafuxuf.pdfIn PDF document text
    • http://vietsonplastic.com/uploads/userfiles/file/79252897189.pdfIn PDF document text
    • http://budka39.ru/files/89484097395.pdfIn PDF document text
    • http://lilcash.com/ckfinder/userfiles/files/wurakufekiji.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/162147d3db43d8---denanukefuvopolato.pdfIn PDF document text
    • https://chingchia.com/uploads/files/202202101744183741.pdfIn PDF document text
    • http://studiolegalezullo.eu/userfiles/files/rekokefutazamu.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/c7538834f6947856d582a0fd82fe1342/kolepipakasazural.pdfIn PDF document text
    • http://tlumacz-bialystok.pl/pliki/file/12682167425.pdfIn PDF document text
    • https://sinaia-vik.com/admin/fckeditor/editor/filemanager/connectors/php/file/sotebele.pdfIn PDF document text
    • http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/84003759360.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/16201bd81ba8b7---gajivunibabivitip.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ffd3cabbc47---tipupokodiwupusadew.pdfIn PDF document text
    • https://eskuvoiiranytu.hu/blog/file/sixokatafexogexenozowa.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=chrysler+sebring+2002+manual+pdfPDF 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_off00033159.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00033159.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00033159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33159 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00034879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34879 11352 bytes
SHA-256: 99de3d40c105b0b422a32271986d0865f5a72f475d992bb18c280475914882bd
font_02_sfnt_off000362a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x362A3 19392 bytes
SHA-256: a8d6dbd65b63aef4409c68119574b9248e161b680f6ea9bd5a34d507f62b6893
font_03_sfnt_off00039453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39453 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6