Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cc814380f817831…

MALICIOUS

PDF

181.0 KB Created: 2021-06-29 16:46:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ce332c1a619913582fb913d4debb9b7d SHA-1: d4be72e12271742a8f05114dca8b55f39d0c7226 SHA-256: 2cc814380f8178312577cda085142e60bdb7b33033efaa9f7482065e3f34f514
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links pointing to compromised WordPress sites and disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, so the primary attack vector appears to be the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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 http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/r3kiqgpkvggulajrrtn0vhn066/zuwizajadirusasokix.pdf In PDF document text
    • http://rcsiprojectracker.com/userfiles/files/zatoxemuruke.pdfIn PDF document text
    • https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/s69uh2lbgm99f4a5lf8n15et1i/58739367037.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/e3ckv49dl4dfpsti5uf4434bn3/58830522549.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/st799m5e4g6psru87ed02dq6l1/rivegutadulidopulogi.pdfIn PDF document text
    • http://agataklimowska.pl/userfiles/file/85925600846.pdfIn PDF document text
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160822e51b04c0---60265717974.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160d270fc60f92---9242193429.pdfIn PDF document text
    • https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/ssd1oig4vusr8aksj4gholjdev/96473814581.pdfIn PDF document text
    • http://sushigonewildtogo.com/uploads/files/lubufudolilufenobeladigu.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c85a8c14f4---bamegow.pdfIn PDF document text
    • https://soosekszer.hu/upload/files/63787310305.pdfIn PDF document text
    • https://mytopics.it/uploads/file/razulelaziminitos.pdfIn PDF document text
    • http://e-pisanie-prac.pl/famprojekt_z_serwera/images/file/xijidimefabunozolu.pdfIn PDF document text
    • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/70d1add5d5f38041146aabf6a04dffc0/19484869717.pdfIn PDF document text
    • http://www.firengo.com/userfiles/files/zerume.pdfIn PDF document text
    • https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/cab630f2582a2211ebe723764151a251/zoluvapizimanamewaw.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaf8e2ea351---larugejuvinutenugaf.pdfIn PDF document text
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/4qicqq34emhabc2ck5h4ium0rn/dijun.pdfIn PDF document text
    • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/8af95cb059c067b61940672011f0e84d/59299395248.pdfIn PDF document text
    • https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/8cbce26b21af22c736d15d8c8ae7a0af/90310131855.pdfIn PDF document text
    • https://ekselantechnology.solutions/ckfinder/userfiles/files/37743973908.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099b5f902e0a---lapujewegi.pdfIn PDF document text
    • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b73539339af---deragugeke.pdfIn PDF document text
    • http://houstontca.org/Content/uploads/files/88922222064.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=fallout+4+commandsPDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000260f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x260F5 10364 bytes
SHA-256: 0c1a0dedfdc022fb36d2a9a52235b78855ad209ba3dc70d3b091d5509b668107
font_01_sfnt_off00027870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27870 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00029082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29082 21168 bytes
SHA-256: a7945f539a245d0ff738d8b1eed588ab521ea5182ba79818090678aa1bbed751