Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfb374623bc90f92…

MALICIOUS

PDF

363.3 KB Created: 2022-05-02 06:49:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 275f468a437de4badc6da1a38faa30d8 SHA-1: eb476a868f65801abebb19c76c3b4932c9ca666f SHA-256: cfb374623bc90f928aaadb2c2a88ac78ecedba08e6409270e27fd1b7d0191e9a
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

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://ragaz.co.za/XSRYdR1H?utm_term=excel+grading+sheet+deped PDF link annotation
    • https://drproperty.org/userfiles/file/finujezales.pdfIn PDF document text
    • http://lauffer.com.br/app/webroot/js/kcfinder/upload/files/57437254564.pdfIn PDF document text
    • https://dpmptsp.pemkomedan.go.id/dpmptspwebaplikasi/libraries/ckeditor/kcfinder/upload/files/49925328790.pdfIn PDF document text
    • https://madapupe.weebly.com/uploads/1/3/4/6/134667506/9044396.pdfIn PDF document text
    • https://zodukoweferu.weebly.com/uploads/1/3/1/0/131069906/bejisokofeti.pdfIn PDF document text
    • https://sajurewuvow.weebly.com/uploads/1/3/4/0/134042423/mutipalufafek-xodazegupezaje-rodad-robeseva.pdfIn PDF document text
    • http://bappeda-jepara.org/app/webroot/js/kcfinder/upload/files/sunitase.pdfIn PDF document text
    • https://lederanun.weebly.com/uploads/1/4/1/3/141371637/muzejinejugonovu.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1622f038ba1901---tekuxira.pdfIn PDF document text
    • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/162161f3527bce---82429558153.pdfIn PDF document text
    • http://piqiso.ru/userfiles/file/41958672605.pdfIn PDF document text
    • https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/xitisezazorijibetawa.pdfIn PDF document text
    • https://teranor.com/ckfinder/userfiles/files/81278212319.pdfIn PDF document text
    • https://dewebunofimob.weebly.com/uploads/1/3/3/9/133986907/texojowumi_timumepazamob.pdfIn PDF document text
    • https://jamiwimavebu.weebly.com/uploads/1/3/1/4/131453695/7041217.pdfIn PDF document text
    • http://www.tamtrebinhminh.com/public/files/73376566843.pdfIn PDF document text
    • http://tucholainfo.pl/userfiles/file/62747767654.pdfIn PDF document text
    • http://ingfrimale.com/userfiles/files/tatepikitudifadosilagagu.pdfIn PDF document text
    • https://guijek.com/userfiles/file/76266290673.pdfIn PDF document text
    • http://skupka54.ru/upload/m/35459921577.pdfIn PDF document text
    • http://biomax.shop/filespath/files/20220219140248.pdfIn PDF document text
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16204813de6f39---wujopafizixefilidipazeru.pdfIn PDF document text
    • http://submission.jpvm.kr/pds/userfiles/files/96937415703.pdfIn PDF document text
    • http://machin.kr/userData/board/file/tuzemikiwalabetanel.pdfIn PDF document text
    • https://sagurofabe.weebly.com/uploads/1/3/4/6/134686650/d38cf6fa20d645a.pdfIn PDF document text
    • https://ckv-siemreap.org/ckfinder/userfiles/files/bojiwisefonozupovol.pdfIn PDF document text
    • https://foodphotoshop.com/userfiles/files/damavogorudopusesirexu.pdfIn PDF document text
    • https://fuvepuzineg.weebly.com/uploads/1/3/4/4/134463404/vunemaki_nevege_kenuf_magopesebex.pdfIn PDF document text
    • https://bestrecycledautoparts.net/images_i/file/79135908420.pdfIn PDF document text
    • https://nusaniwufozeg.weebly.com/uploads/1/3/4/7/134751508/xaxuritinadoponug.pdfIn PDF document text
    • http://tehnaplus.mk/tehnaplus/kcfinder/upload/files/530521814.pdfIn PDF document text
    • https://patakobenidirok.weebly.com/uploads/1/3/0/7/130775678/a109835.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_off0005381f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005381f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005381f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5381F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00055036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55036 10756 bytes
SHA-256: 140e79f274fac423694f6689ff1539f8da7cc0726f365bce3da254eb0d7a5f46
font_02_sfnt_off000568a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x568A9 20724 bytes
SHA-256: 4554178bfb904bf48969046fc7900ffaed1142f6f65d2c1045f22c154c4a97cd