Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2d8c8c8d7580ec3…

MALICIOUS

PDF

91.6 KB Created: 2022-02-08 04:57:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 8ff08de4e435658d63aa89211911775e SHA-1: 34190339fcd97064b2acf6d40869552af628e357 SHA-256: e2d8c8c8d7580ec3340a27c41c1bd558cdaed0348c771790ba8277d7977dfbde
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9867

Heuristics 9

  • 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.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://alwillislifecenter.org/ckfinder/userfiles/files/kipobezex.pdf In PDF document text
    • http://yeongwonenc.com/userfiles/file/88051089059.pdfIn PDF document text
    • http://slkuang.com/v15/Upload/file/20211025182446579.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616e71b69dd9e---nemoxibilexizosinurofuku.pdfIn PDF document text
    • http://home-hj.com/up_photo/file/pumupesu.pdfIn PDF document text
    • http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/vozopa.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1616859500bdbd---30422397910.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/161d0949e01ad9---gorebekizidugutunuse.pdfIn PDF document text
    • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/550ddac19f851a1b7e8f0b72aa38bf0e/62303625137.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/161651339753ec---26843042028.pdfIn PDF document text
    • http://cathugo-yachts.de/res/wysiwyg/file/9813729479.pdfIn PDF document text
    • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617fda3a5573f---zokenu.pdfIn PDF document text
    • http://architettoannalisatinelli.it/userfiles/files/rosemi.pdfIn PDF document text
    • http://netisiletisim.com/guvennet/resimlerfiles/sinunavizezina.pdfIn PDF document text
    • https://terminal.hr/userfiles/file/5404543318.pdfIn PDF document text
    • http://xn--c1adbeke4asdefy.xn--p1ai/ckfinder/userfiles/files/miras.pdfIn PDF document text
    • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/ce67493c0b2a97e2c360ef52e510939d/lifuxuterozijobo.pdfIn PDF document text
    • https://www.bnbtravels.com/ckfinder/userfiles/files/83864746654.pdfIn PDF document text
    • http://energy-partner.pl/kcfinder/upload/files/farunolisejogolazises.pdfIn PDF document text
    • http://www.protectakoteasia.com/ckfinder/userfiles/files/6809214114.pdfIn PDF document text
    • https://bem-sa.com/img/file/gepimusobopinixi.pdfIn PDF document text
    • http://msslink.ru/userfiles/files/xivokixitiwoteput.pdfIn PDF document text
    • http://dailitara.lt/bites/uploads/file/86624825603.pdfIn PDF document text
    • http://test.currentaffairsfunda.com/assets/kcfinder/upload/files/74418193890.pdfIn PDF document text
    • http://mp3store.airwebsitedesign.com/userfiles/file/39839299201.pdfIn PDF document text
    • http://melody-house.ru/kcfinder/upload/files/guvefudifejawex.pdfIn PDF document text
    • http://laxycoffee.com/upload/files/pogetojig.pdfIn PDF document text
    • http://serenetour.com/image/upload/File/97431986473.pdfIn PDF document text
    • https://hzautomatisering.nl/userfiles/file/32133591058.pdfIn PDF document text
    • http://htygroup.com/upload/files/jupigonupipanutizaraf.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=fedvte+quiz+answersPDF link annotation
    • https://atiksigorta.com/files/23808622272.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_off000100e6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000100e6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000100e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100E6 10512 bytes
SHA-256: 4742bf528f088d377a9890ec4559336a0fb69f7133ca352f9dc190473bd4d45d
font_01_sfnt_off000118d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D0 18236 bytes
SHA-256: 127c0d800f2d191157a3ccc04f617171e71a922ae0068266b17cc79ea17f9260
font_02_sfnt_off00014902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14902 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9