Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1e0dc9291be49d7…

MALICIOUS

PDF

92.4 KB Created: 2021-06-26 02:47:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 9214d779e36ed38ad30352b84cc8c4f4 SHA-1: 3cbceeeb12d15d9aee491070884677cf2343f15d SHA-256: a1e0dc9291be49d7cedd143c2974db32ccf98436ad043e1a04547895bd511f46
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous external URIs and link farm patterns, suggesting it is designed to redirect users to compromised websites. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://catamma.ru/uplcv?utm_term=calvin+and+hobbes+1995 PDF link annotation
    • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e583b9b2434f1e23abc19680afef69e1/94334485238.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607231f81538f---39474482747.pdfIn PDF document text
    • http://angelescare.com/userfiles/file/90616156269.pdfIn PDF document text
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160c50e8b6713e---9449645852.pdfIn PDF document text
    • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f22864ed65---wefikatagodule.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160960adc1dde0---xetivitunipoxajedevig.pdfIn PDF document text
    • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080333578c1b---39952066454.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/ba9eaeb612a471a4b75b536615215221/butamudedemowupa.pdfIn PDF document text
    • https://patc.fr/imagesfile/zubitekile.pdfIn PDF document text
    • http://shinies.ru/img/lib/file/fogerekivowodudipi.pdfIn PDF document text
    • https://vydavatelstvoklett.sk/userfiles/file/pegofu.pdfIn PDF document text
    • https://www.deuba.info/wp-content/plugins/super-forms/uploads/php/files/f2sfmo6k3rteu9cqcd1h14fvft/25524504196.pdfIn PDF document text
    • http://hzdsbg.com/uploadfile/1621426727.pdfIn PDF document text
    • https://baxsporthorses.nl/userfiles/file/nawozalij.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/hp6mblkf144k256j8r5hdllc45/48013111468.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160901af34da58---32798811284.pdfIn PDF document text
    • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/69fd01784bbacae468c5764d91179465/gumidetabil.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/ba4a97a656c334bcf4f230f30280f8df/gatoliliruxunedajijenid.pdfIn PDF document text
    • http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/16079758722ef2---sudemesijizuvojuz.pdfIn PDF document text
    • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16084bdaf1d3ba---59232070245.pdfIn PDF document text
    • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c81c01df34---79244153368.pdfIn PDF document text
    • http://jnnycc.org/userfiles/file/lenagamijifuwabavu.pdfIn PDF document text
    • http://alnoorcity.com/userfiles/file/81216836105.pdfIn PDF document text
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/m3tgqe90v423uhq3mu2ctfr19l/vojamubipigotig.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c742cedb2550cac2e0eaae45924d444e/63929418325.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001049d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1049D 17460 bytes
SHA-256: 48b58130fcf2dc38062d7736a773fc455e40af8e92ecbd77a1ff9c799f4155bb
font_01_sfnt_off00013227.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13227 10736 bytes
SHA-256: e88b03740188e7ccac50f35bffe1c6ab1ab6c861e12770e57b5201531d87ae4a
font_02_sfnt_off00014ad2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AD2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.