Malicious PDF — malware analysis report

Static analysis result for SHA-256 5523c236f50ff864…

MALICIOUS

PDF

269.6 KB Created: 2022-02-26 10:44:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 68df1cea2ef432b55f33a7ddbd34291b SHA-1: 0a90e3943c72c37d54ccfde5b9fb3bbca05b881e SHA-256: 5523c236f50ff864a1e8c05612e25319868991d6db2454f2006c667881bc82cb
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7783

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
  • 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.
  • 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://yubit.co.za/XSRYdR1H?utm_term=android+p+google+play+services+battery+drain PDF link annotation
    • http://mytenniscoach.net/admin/ckeditor/kcfinder/upload/files/80403949402.pdfIn PDF document text
    • http://www.immat.org.tr/kcfinder/upload/files/59785138923.pdfIn PDF document text
    • https://cncunse.com/d/files/wepexigijogazu.pdfIn PDF document text
    • http://fxmeat.com/upload/file/ccfcace0a46550b62bb645d30b69afd9.pdfIn PDF document text
    • http://crislbd.com/public/admin/assets/ckeditor/kcfinder/upload/files/35731280511.pdfIn PDF document text
    • https://aaaxxion.info/images/file/67127352389.pdfIn PDF document text
    • https://lixtech.com.tw/ckfinder/ckfiles/files/xewarifaxegexinasamozevo.pdfIn PDF document text
    • http://campbellelectronics.com/uploads/62359746820.pdfIn PDF document text
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec96a304d3b---15291426109.pdfIn PDF document text
    • http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/84443241802.pdfIn PDF document text
    • http://spamsmsgiare.com/media/ftp/file/18859535419.pdfIn PDF document text
    • http://kpglearningbox.com/assets/kcfinder/upload/files/97829914384.pdfIn PDF document text
    • http://malerbetrieb-malanders.de/Webseite/pics/fotos/1/file/tokezuwedemonoguja.pdfIn PDF document text
    • http://phuocthuan.vn/images/pic/file/fezaboxorasutegudime.pdfIn PDF document text
    • https://www.ozkozel.sk/kcfinder/upload/files/ruwuwo.pdfIn PDF document text
    • http://fishlinkworldwide.my/assets/kcfinder/upload/no_user/files/41589462486.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/161d630d966e5b---banokit.pdfIn PDF document text
    • http://abwcrainhwy.com/uploads/files/53965131442.pdfIn PDF document text
    • http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/vivonavumava.pdfIn PDF document text
    • https://dxline.eu/userfiles/file/liluranap.pdfIn PDF document text
    • http://www.elmundodelapiscina.com/ckfinder/userfiles/files/nulidazuzamunovirufapo.pdfIn PDF document text
    • http://bugskin.org/userfiles/file/97075334120.pdfIn PDF document text
    • http://expertsystemgroup.com/file_media/file_image/file/87028218121.pdfIn PDF document text
    • https://egraph.fts-eu.com/userfiles/file/74582931308.pdfIn PDF document text
    • http://atut-biuro.com/uploaded/file/labinen.pdfIn PDF document text
    • http://luxmeterthai.com/ckfinder/userfiles/files/nuxaduni.pdfIn PDF document text
    • http://www.forteks.com.br/admin/ckeditor/ckfinder/userfiles/Images/65104508411.pdfIn PDF document text
    • https://hrmconsulting.biz/upload/files/nisagawifariron.pdfIn PDF document text
    • http://fbrasil.com/userfiles/file///dowobelokodu.pdfIn PDF document text
    • https://noitiethoc.com/userfiles/file/potazezitepiwuv.pdfIn PDF document text
    • http://ukz-service.ru/kcfinder/upload/files/73112916128.pdfIn PDF document text
    • http://xutricolor.com/uploadfile/files/zokej.pdfIn PDF document text
    • http://hiroshima-teishaku.com/userfiles/file/vovovakalajo.pdfIn PDF document text
    • https://bravo-hk.com/userfiles/file/zelubagukopetemojemul.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16208b82da3630---96323367928.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_off0003c4a3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003c4a3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003c4a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C4A3 10988 bytes
SHA-256: ffc190b8c5a2a7625ac2f55faeaef3121445ac84bca087771293a1b6f8e9bbe0
font_01_sfnt_off0003dde6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DDE6 18792 bytes
SHA-256: e615d0f2d8eb2262114304072d3494e5815b42dca92d4522f8749f1574e794af
font_02_sfnt_off00040f8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40F8D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9