Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccabf82000db8954…

MALICIOUS

PDF

79.2 KB Created: 2021-07-01 22:45:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 2a4f686bf86be79e75a762bf8c888c82 SHA-1: 5054d0878ee96cddf8a57effe18574835de8e51e SHA-256: ccabf82000db8954b4d1b7dc8b3a6254daf0b8bd678a762fc8f02a8a249f526b
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs that point to various domains, many of which are associated with compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of malicious redirection tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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
  • 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.
  • 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://wastran.ru/uplcv?utm_term=food+science+norman+n+potter+pdf PDF link annotation
    • http://rjt1.org/upload/files/mamazapejitofuvojiji.pdfIn PDF document text
    • http://araonline.hu/uploads/file/rowefinetokonuxatu.pdfIn PDF document text
    • https://ms01bet.net/contents//files/89155011327.pdfIn PDF document text
    • https://brtim.com/uploads/wysiwyg/files/donoj.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608da90984bbb---29236917339.pdfIn PDF document text
    • http://brandnewgoods.net/userfiles/file/92831624124.pdfIn PDF document text
    • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/gqvr0cpkml5fa9n1i5kt2ka393/jedeleb.pdfIn PDF document text
    • https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/1qf61jr86319qh0kutflh2fonb/paxuwifosesiwuxiso.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b590ea52d41---17532735904.pdfIn PDF document text
    • https://www.westcountrystoves.co.uk/wp-content/plugins/super-forms/uploads/php/files/fa14af02989d0e42c2569035b90b1a2d/mulusuwilezafepidag.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160868d27b1c10---24454109345.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/c2u1a0ch0mertd18bpt3thfif1/fidutawil.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160ba9f69c6967---45332907881.pdfIn PDF document text
    • http://doktor-okonski.pl/uploadimg/file/90894900949.pdfIn PDF document text
    • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/3es8dfl0bbgmdivi738ts7vls7/riwedudunalebulafuxata.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c5b804b1d6d---niwimaberimumugotosanem.pdfIn PDF document text
    • https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/1afci8odfjeu55bub2rab5e7qo/jexokinilizuziwubalegiz.pdfIn PDF document text
    • http://stardentalcare.org/userfiles/file/41728311544.pdfIn PDF document text
    • https://beysukonaklari.com/ckfinder/userfiles/files/71091823651.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16073695f6b30c---36323947709.pdfIn PDF document text
    • https://avenue102.com/uploads/file/lazugafakolejurazike.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609be0abb8b52---61461488520.pdfIn PDF document text
    • https://alihuata.com/userfiles/file/visanujagaluwuwowesi.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC7C 10712 bytes
SHA-256: 97fd15509ab2c9d3499e7814c92483ccf93639d828da2bae7e4b0c5e52549cf6
font_01_sfnt_off0000d50a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD50A 16300 bytes
SHA-256: cb22297cb345efa2b973a5529f7d34f362c2fa401ecec879e64cb16b1dda6a81
font_02_sfnt_off0000eb28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB28 16784 bytes
SHA-256: 93c891fb5f761fbbe542f445cef42b05cbc264a256caa504f45bb40e3395e7cd
font_03_sfnt_off00011700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11700 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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