Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cc017db680073b7…

MALICIOUS

PDF

76.4 KB Created: 2021-07-13 00:06:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 62a18a6ce59a11b104de169657dcb1e5 SHA-1: 1b9c5b33ef3cd5a7a0e276a3fed32629cd50d063 SHA-256: 2cc017db680073b791af6531b35460bcc0d58f28f61d5709e75728563008c908
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link farm pointing to numerous compromised WordPress sites and other domains, likely intended to distribute further malicious content or phish users. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary function appears to be redirecting users through a series of compromised sites, potentially leading to exploit delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/6vdjk7cp059sac49u4hh94ml9s/vonesepo.pdf In PDF document text
    • http://africanhairbraidingsalon.com/userfiles/file/givifapi.pdfIn PDF document text
    • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac61137d63---xepipuxaburado.pdfIn PDF document text
    • http://mentaplywood.com/images_upload/files/nifef.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608203c5f2114---detidorujiwugare.pdfIn PDF document text
    • http://verdantnorwich.com/clients/3/30/306756bb587dffcd11ca74610d845a16/File/67440432416.pdfIn PDF document text
    • http://ozdoby-betonowe21.pl/Upload/file/78461796920.pdfIn PDF document text
    • http://dioceseofniranam.org/userfiles/file/zabiminaxevudosanilasi.pdfIn PDF document text
    • http://kingsfinancialconsulting.com/userfiles/file/79019276118.pdfIn PDF document text
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160caa7ac0d2e0---kijeliwuliwupipokijab.pdfIn PDF document text
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c158955b99---nunadepuwonekuvoxo.pdfIn PDF document text
    • http://ahlhy.com/uploads/file/290958494752.pdfIn PDF document text
    • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3e6123c16---walufefufubibixiz.pdfIn PDF document text
    • http://scan3dsaigon.com/upload/files/99032836412.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/k5bbms26sg1o1b4qglhk26biv1/14488022739.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a3495bad3c5---visifexagerujugibofew.pdfIn PDF document text
    • http://huile-de-nigelle.info/userfiles/file/ligibawezidarigurijad.pdfIn PDF document text
    • http://cesurmakina.com/userfiles/file/rexalesazefeza.pdfIn PDF document text
    • http://angelcabrera.com/FCKfiles/file/jetebozetezo.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607037425dea1---15494283718.pdfIn PDF document text
    • https://drsubhashawale.com/ckfinder/userfiles/files/zufovudosugot.pdfIn PDF document text
    • http://zhouzhuank.com/v15/Upload/file/2021623215103207.pdfIn PDF document text
    • http://teleinwestor.com/userfiles/file/97637596609.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=lyrics+bee+gees+to+love+somebodyPDF 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_off0000c1ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1EC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000da03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA03 10724 bytes
SHA-256: 9062eb3063b26ce24f74e2b0340f7272a6a630110c204298577855f37b726e51
font_02_sfnt_off0000f281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF281 19488 bytes
SHA-256: a4f297abe7ab6d23a9f02ecdc6a43b2ec99438b3e0ec6d61ed780be68d89fc93

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