Malicious PDF — malware analysis report

Static analysis result for SHA-256 e60f50acf10e0fe5…

MALICIOUS

PDF

98.5 KB Created: 2021-06-28 23:05:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 2af6d30c0aca088b5004fdf43e8378fb SHA-1: 9b281bfec41e30840e4a9b02a09822a69fcf04c0 SHA-256: e60f50acf10e0fe5b89c438ab7fb30c6c151de2837f96dcf2b69f0ff5f79c018
156 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution through these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9895

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://southtours.com/wp-content/plugins/super-forms/uploads/php/files/a8lc0ufpspm3cv81tdclbqi00b/xorirokuzalagufaxefibazop.pdf In PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbd0332081---duzimu.pdfIn PDF document text
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1dbb20edd4---kolibegigesuvebatu.pdfIn PDF document text
    • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bac66477e6094fac46c917f01b2717be/gozukijenidimeritura.pdfIn PDF document text
    • https://rubenoferro.com/userfiles/file/99386728183.pdfIn PDF document text
    • https://feniks9.ru/ckfinder/userfiles/files/kolujexa.pdfIn PDF document text
    • https://ensasoft.com.tr/wp-content/plugins/super-forms/uploads/php/files/ao22rlv957uahfs5cvef50dd52/naveposidaxejolabisekib.pdfIn PDF document text
    • http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1993e0644---zevedevotujom.pdfIn PDF document text
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607860cb82649---norusivezuromebeb.pdfIn PDF document text
    • http://xn--365-pn7mwb654m2qn.com/ckupload/files/21704367064.pdfIn PDF document text
    • http://rialta.ie/userfiles/files/92654593146.pdfIn PDF document text
    • http://csptech.net/admin/userfiles/file/poxokitifob.pdfIn PDF document text
    • http://karmand24.ir/basefile/ehotel724ir/files/vizujagewek.pdfIn PDF document text
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4a569730c2---fazojezalazepoz.pdfIn PDF document text
    • http://heizler.hu/files/file/91703164789.pdfIn PDF document text
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/0v4oj2js8fvb3211a1rivg3ccr/2300555829.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/j56tt1qrf4794u04fuoahencc1/23353614607.pdfIn PDF document text
    • http://fine-cottage.ru/userfiles/files/16797572631.pdfIn PDF document text
    • https://arte-salon.ru/upload_picture/65802014870.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608569f0d5de2---togosedokafumesugufeb.pdfIn PDF document text
    • http://score1forspencer.com/clients/4/45/4587145e2679cb7673d0e21b436e5c25/File/nupuxabevedezon.pdfIn PDF document text
    • https://rybczewice.pl/userfiles/file/72341274950.pdfIn PDF document text
    • https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/38448106845db3dca6a5e268fb7523e5/wogujeratizidat.pdfIn PDF document text
    • https://dotcomtravelegypt.com/userfiles/files/jelez.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=how+do+you+colour+leather+armour+in+minecraftPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10571 17664 bytes
SHA-256: 4218295a3f05afe3e21f6fb5581e7a679040345eb9a96ee71fb891184b000bad
font_01_sfnt_off000133bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133BD 16084 bytes
SHA-256: 325c5f5cda05429ae92d15c23118ca1b8712e485108c584e1e30b0ff615913b7
font_02_sfnt_off000148ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x148EA 10864 bytes
SHA-256: b33e8cf523e8aa6ad3bce5590effbad560ae16a588a737a9869a9a798ae9cbc2
font_03_sfnt_off000161d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x161D4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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