Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd40198d023b0b1…

MALICIOUS

PDF

417.6 KB Created: 2022-02-07 20:50:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 025069cdd42f6842161e919dcfbf18b4 SHA-1: 34954853ff56ba3b3a84727da184fda2f720e31b SHA-256: 3dd40198d023b0b192ed431ee6e65d7d28092ad8a58a02b5599ff98724deca2b
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6745

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://loheb.co.za/XSRYdR1H?utm_term=adverbs+of+possibility+and+probability+exercises+pdf PDF link annotation
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/1a5209d067df2d1ae0b30a832821ac00/fazowuge.pdfIn PDF document text
    • http://mercuresamuichaweng.com/admin/file/4638753559.pdfIn PDF document text
    • http://biurod9.pl/public/userfiles/file/ximafufagosekogub.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/0f8d2c7ebecda57c710e19fcb05cb5eb/pejumufab.pdfIn PDF document text
    • http://infiniti.e-library.tw/uploads/files/mudurovekerafukenipaxo.pdfIn PDF document text
    • https://mami-m.com/Uploads/userfiles/files/judat.pdfIn PDF document text
    • http://npxbyy.com/wang3_3_10_27/Upload/Upload/file/2021718104367124.pdfIn PDF document text
    • http://paroissedementon.fr/upload/files/41896170925.pdfIn PDF document text
    • https://peoplehelppeople.net/uploads/File/netiposazesive.pdfIn PDF document text
    • https://francois-daulte.com/ckfinder/userfiles/files/lidolipovexevosomeluji.pdfIn PDF document text
    • https://gymlesgeants.com/upload/editor/file/nazuwaxanozagatubewomaz.pdfIn PDF document text
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611a9c208a3c4---70084757634.pdfIn PDF document text
    • https://damiel.eu/userfiles/file/62884069264.pdfIn PDF document text
    • http://chrislahoda.ca/userfiles/file/wafovi.pdfIn PDF document text
    • http://stickers-moins-cher.com/userfiles/stickers-moins-cher.com/file/32708476293.pdfIn PDF document text
    • http://dulwichtaxi.com/survey/userfiles/files/97456186918.pdfIn PDF document text
    • http://bagiez.de/userfiles/file/86513377683.pdfIn PDF document text
    • https://yingzhaoliuart.com/upload/file/nadojuxuvazapugotuwad.pdfIn PDF document text
    • 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_off00061bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BF4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006330f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6330F 16492 bytes
SHA-256: 669d8d9fdacfe34763fd09ab41553df83bcd229a53a5e84163013c03d9ded21d
font_02_sfnt_off00065de8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DE8 11016 bytes
SHA-256: 9b4f59f146e82d45713a980c580ea93696b0dd6ea11d606498844868b474d0c1

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