Malicious PDF — malware analysis report

Static analysis result for SHA-256 941d51579ed571c8…

MALICIOUS

PDF

265.7 KB Created: 2022-01-13 07:43:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: c5d92f460f60b7e137ee17935b4bca49 SHA-1: 7a36a884281e0005f6bceeb9a1f39a6a584858ed SHA-256: 941d51579ed571c859c3271b8a87b2ae347ab5bdc2c35061c7a41a84e66a9dcf
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6774

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://almawred-sy.com/files/adminfiles/files/19703346241.pdf In PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/16141742f10e25---83781380994.pdfIn PDF document text
    • https://thisissati.com/userfiles/files/39123773294.pdfIn PDF document text
    • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16155f17e64494---fenunenedalonenavol.pdfIn PDF document text
    • http://sistersaviopublicschool.com/userfiles/file/63047211441.pdfIn PDF document text
    • https://excellencetogether.com/img/files/file/wugapalolefapasix.pdfIn PDF document text
    • https://x-software.cz/data/file/xivevisipolam.pdfIn PDF document text
    • https://luatkhangthai.vn/upload/fck/file/48705598031.pdfIn PDF document text
    • https://sanidom.pl/img/file/budikiwafimexoniwazodobo.pdfIn PDF document text
    • https://presstone.hu/userfiles/file/wixesonatosaral.pdfIn PDF document text
    • http://hanlacsclub.com/ckupload/files/80061532433.pdfIn PDF document text
    • http://gamecoast.by/uploads/files/vutozusesudo.pdfIn PDF document text
    • https://brawlcall.com/ckfinder/userfiles/files/negejuse.pdfIn PDF document text
    • https://marblobathware.com/app/webroot/img/files/dalajewawatunowegazinaf.pdfIn PDF document text
    • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161a845a445590---50647429052.pdfIn PDF document text
    • http://spprp.pl/userfiles/file/62836802805.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/a8813750d2d1c4f90f64deb8da96990e/70008467537.pdfIn PDF document text
    • https://loppisidjupdalen.se/images/uploaded/file/66712741322.pdfIn PDF document text
    • http://westfield.qa/multimedia/userfiles/file/81833147451.pdfIn PDF document text
    • http://heimatforschung-marktleuthen.de/lexikon/bilder/14078374065.pdfIn PDF document text
    • https://kominove-centrum.cz/media/files/file/kofitamexulofalerena.pdfIn PDF document text
    • http://epmresearch.org/userfiles/files/genoruvabesaser.pdfIn PDF document text
    • http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/donanofalepemiramujigiba.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/vcib294caqiha0vi822ijs4dc7/lowidarorakorobiw.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617b9881ad352---mabikenufubuva.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/EqozwcbAC44/uplcv?utm_term=bumpy+ride+song+freePDF 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_off0003a2e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A2E3 17844 bytes
SHA-256: 18102bbfcd98e593b6d4d4f2eb1caaa1f4e46d519714207842bd10a65dbf8d26
font_01_sfnt_off0003d16c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D16C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0003e80a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E80A 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_03_sfnt_off0003fdef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FDEF 10804 bytes
SHA-256: be600f40ffe258d6f5c5cfbdc08193222c633d4a70eacbfa81885a8ca26d17e6