Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcc6d500ba756e5…

MALICIOUS

PDF

248.7 KB Created: 2021-12-17 11:19:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: f64f627204774aeb04101cf90ed4c0d0 SHA-1: 2fdee50420c647b819fbc710270db7f4c9b14d5b SHA-256: 1dcc6d500ba756e5485770e8f5a4a8e6d16f16acb3391796cea4155311156346
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7915

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://kht.civilkozpont.hu/uploads/file/64621386727.pdf In PDF document text
    • http://logicamail.it/draft/media/zewuvilo.pdfIn PDF document text
    • http://arredamenticucinesiciliane.it/userfiles/files/70008944885.pdfIn PDF document text
    • http://kamnitikamini.si/upload/files/6977910780.pdfIn PDF document text
    • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/be3ddda0cd53f2cbe219821cea48fdf0/gizupesarefo.pdfIn PDF document text
    • http://mpti.ru/userfiles/file/67922818243.pdfIn PDF document text
    • http://jca-t.com/fck_image/file/95404834448.pdfIn PDF document text
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1619c1e443d10a---58504697572.pdfIn PDF document text
    • https://karlholmbygg.se/UserFiles/files/fukekusonejizubalija.pdfIn PDF document text
    • http://kemenyseprosiklos.hu/upload/file/gurumej.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/161b433b24d4a0---risevitaneb.pdfIn PDF document text
    • http://studiotecnicopinto.it/userfiles/files/91831145509.pdfIn PDF document text
    • http://silverspringabw.com/uploads/files/40653390771.pdfIn PDF document text
    • http://myesen.life/userfiles/file/9861747023.pdfIn PDF document text
    • http://hightopeducation.com/cms_uploaded/file/giruvo.pdfIn PDF document text
    • https://llbyggodesign.se/UserFiles/files/noputokumebimomukukujijuz.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/00a7f84bf3b6a290f2f81e631fd24a7b/wokugobelig.pdfIn PDF document text
    • https://xyoaa.org/sites/default/files/files/tagavimedeleru.pdfIn PDF document text
    • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/1918979936175b4b1c4da6.pdfIn PDF document text
    • http://gimnazjum-krasiczyn.pl/img/userfiles/file/22924578262.pdfIn PDF document text
    • http://wellogo.in/userfiles/file///wibejinajej.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/xPAns0MRe5M/uplcv?utm_term=how+to+calculate+dividend+yield+on+common+stockPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003764c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3764C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00038ceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38CEB 17532 bytes
SHA-256: ea4cd5aad537cc7676f2c21e2cfea3bdff266ef3e81276c05259886de6159ea9
font_02_sfnt_off0003baa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BAA4 10880 bytes
SHA-256: 406765a108c9aa6b0bc1ff260c1243b458bfe7ab8c6555be77d1fbc579fcb9da

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