Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7ddf98a0ea053c5…

MALICIOUS

PDF

287.5 KB Created: 2021-12-26 00:51:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: 457836fabb2e82f7a41da9fd4dac4788 SHA-1: a4b5497beb9593b07b6e4d888c1a0798f7bcfae8 SHA-256: c7ddf98a0ea053c50de57e1ae9a1aba6b9c0164464536b6ab14f8c31a619c29b
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6517

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://bisleriuber.genefied.co/ckfinder/userfiles/files/livozilikotalerutanimip.pdf In PDF document text
    • http://digitalpolicycouncil.org/imagenes/file/13833906285.pdfIn PDF document text
    • https://xosobacninh.vn/webroot/img/files/79356051323.pdfIn PDF document text
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/161689a76196c0---15914317413.pdfIn PDF document text
    • http://secureyun.cn/uploadfile/file///2021120613024144.pdfIn PDF document text
    • http://guide-eq.com/userfiles/file/20211021021812_65dwnc.pdfIn PDF document text
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161aadc2a9774a---tijokurumakiluzos.pdfIn PDF document text
    • https://karlschool.org/uploads/files/202109182231416192.pdfIn PDF document text
    • https://aynadakikemalizm.com/resimler/files/93112202431.pdfIn PDF document text
    • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/34f280f418b08adc5ab5bb4d4e154d45/zoxedepegunojatavalofomos.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a7676cc42a2---leleru.pdfIn PDF document text
    • http://dorapeyzaj.com/userfiles/file/zasoxexigedijulodosoje.pdfIn PDF document text
    • https://pchome.uzai.ca/upload/files/pijimatowofizigevowa.pdfIn PDF document text
    • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615cbbabab9f2---lujoberaja.pdfIn PDF document text
    • http://poliman.srv.br/assets/kcfinder/upload/files/31559506411.pdfIn PDF document text
    • https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/garemunulen.pdfIn PDF document text
    • https://alcoolassistance-creuse.net/www/site/js/ckfinder/userfiles/files/sidesimujore.pdfIn PDF document text
    • https://ciiinnovationsummit.com/ci/userfiles/files/36596759849.pdfIn PDF document text
    • http://sensor4you.com/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202112/file/delogopifizixune.pdfIn PDF document text
    • http://4seasonstours.in/userfiles/file/60519878095.pdfIn PDF document text
    • http://pn-tech.net/userData/board/file/giwetogifeba.pdfIn PDF document text
    • http://ytlcases.com/userfiles/file/gadakopexadojigaja.pdfIn PDF document text
    • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/6560774249fad0fd96fa616258ae3a9d/59403579935.pdfIn PDF document text
    • http://msinziniering.com/userfiles/file/48862846688.pdfIn PDF document text
    • https://khotelmarket.com/FileData/ckfinder/files/20211002_E70FD92C034A35B9.pdfIn PDF document text
    • http://smolensk-bakaleya.ru/userfiles/file/sazexugejuxe.pdfIn PDF document text
    • http://reestr.fgosvo.ru/files/files/81153895090.pdfIn PDF document text
    • http://wdnederland.nl/file/65938146976.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/HKUGBsJGI0E/uplcv?utm_term=notice+template+for+leaving+jobPDF 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_off00040da5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00040da5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00040da5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40DA5 10968 bytes
SHA-256: f13c7e51da603da9e79e42cbf7d93cbccfe163cc3fdc86fa22702585f9492e56
font_01_sfnt_off000426de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x426DE 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00043d7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43D7D 18764 bytes
SHA-256: 9f73d69dd8f291cb0fd6a95e53764e24d7721370eec182bcd5f974c2db676075