Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9976591e6103039…

MALICIOUS

PDF

75.1 KB Created: 2021-11-22 13:16:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 5e7df926fab8d705c93e7e885ee8c6c8 SHA-1: 263080b144b1b85ee5947d2b0f3eef8a68d073d7 SHA-256: f9976591e6103039f95eea8dbc2d5b439526bb5441703df1e0209206fa09cb0d
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://xn--b1adrijbbb.xn--p1ai/upload_picture/12105406551.pdf In PDF document text
    • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/f46ed47f082a99479c8262b3632eb3dc/duwibomafapanejepag.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/161734a70503d7---mizagetemo.pdfIn PDF document text
    • http://starma.pl/files/file/4012762067.pdfIn PDF document text
    • https://mttrasportisrl.it/dati/upload/file/53269847506.pdfIn PDF document text
    • https://baschin-heizung.de/meineBilderAlbertGrundschule/file/50788574546.pdfIn PDF document text
    • http://www.pibmg.com.br/ckfinder/userfiles/files/files/fujosanewato.pdfIn PDF document text
    • http://www.salpasafarit.fi/tiedostot/files/6930826696.pdfIn PDF document text
    • https://tarzminder.com/resimler/files/68879616007.pdfIn PDF document text
    • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615109e3b6e0e---vaduwobulekiloniwuse.pdfIn PDF document text
    • http://citra.cl/userfiles/file/zudarixozal.pdfIn PDF document text
    • https://serpavenger.com/ckfinder/userfiles/files/766374284.pdfIn PDF document text
    • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618fb153be417---povepowigenosewivojos.pdfIn PDF document text
    • http://89928386.com/uploads/files/202111150413365222.pdfIn PDF document text
    • http://candientu24h.vn/webroot/img/files/38137975402.pdfIn PDF document text
    • https://atarentacarburdur.com/userfiles/file/xudaxugu.pdfIn PDF document text
    • https://dnsbp.com/all4help/fckuserfiles/file/fegugexuporoli.pdfIn PDF document text
    • http://donghozibistore.com/luutru/files/400706850.pdfIn PDF document text
    • https://cancelaria.pl/galeria/file/71381968916.pdfIn PDF document text
    • http://alda.pl/ckfinder/userfiles/files/48255400595.pdfIn PDF document text
    • http://chandravanshi.com/userfiles/file/garat.pdfIn PDF document text
    • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144951c129ee---37829670700.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/D9plVHj2VOU/uplcv?utm_term=acre+to+bigha+in+mpPDF 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_off0000c3bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3BB 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000da5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA5A 16948 bytes
SHA-256: 4e65356e04d5a8b072fb2824d9f2aa21f44e0968b9788f5787bf89b2cd2a763a
font_02_sfnt_off000106a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A1 10728 bytes
SHA-256: 8d004ea27a13487c185374b631565284fed1a7858436acac750f8ab2fcf258e3