Malicious PDF — malware analysis report

Static analysis result for SHA-256 dddd039a64f351aa…

MALICIOUS

PDF

426.8 KB Created: 2022-03-28 00:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-16
MD5: 21e0f2398352773590d6cc5cad90f4ec SHA-1: f02098eff63d7ecab76c7ff12c585cb8ad054076 SHA-256: dddd039a64f351aa78d66f3da1a95bce92572db541dc0b25b22240219a967a12
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3893

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://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161fab8a90a49f---gimamoxa.pdf In PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/r3lv9u8ffsl2t0oghfhln9pvi4/redoravesadomekad.pdfIn PDF document text
    • http://novosib-sport.ru/ckfinder/userfiles/files/97037331354.pdfIn PDF document text
    • http://bifruit.mk/ckfinder/userfiles/files/6822663042.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fef5e0f0ce6---5990313671.pdfIn PDF document text
    • http://christ-china.com/filespath/files/20220224150539.pdfIn PDF document text
    • http://akvarium-olbrecht.cz/upload/file/36396518626.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/4f6475734ad8216aac45621402b50f00/tozom.pdfIn PDF document text
    • http://ghanzi.net/kcfinder/upload/files/85912867620.pdfIn PDF document text
    • http://www.fichetalmeria.com/admin/kcfinder/upload/files/zebusanug.pdfIn PDF document text
    • http://syuncyoku.jp/upload/file/32131001016.pdfIn PDF document text
    • https://namngonviet.vn/user-/files/famodavujitaropogu.pdfIn PDF document text
    • https://sabatti.hu/admin/kcfinder/upload/files/46854492942.pdfIn PDF document text
    • http://zonatourism.com/media/ck/files/93051191099.pdfIn PDF document text
    • http://daejonggyoyc.com/userfiles/file/20220321175824.pdfIn PDF document text
    • http://jrscphalashia.org/ckeditor/kcfinder/upload/files/rexudesinek.pdfIn PDF document text
    • http://gysanya.com/upload/file/220216100250089077wd86tn9ty7vr.pdfIn PDF document text
    • http://getrade.net/uploadfiles/file/tifidipevoluvaduvu.pdfIn PDF document text
    • http://xtra360.net/campannas/file/59440139804.pdfIn PDF document text
    • http://daiichilogistics.com/uploads/news_file/65800435870.pdfIn PDF document text
    • https://www.sophrologue-nimes.fr/upload/news/files/68867533334.pdfIn PDF document text
    • http://octapus.vn/images/uploads/files/122639735.pdfIn PDF document text
    • https://truonggiangcompany.com/userfiles/file/ganufovir.pdfIn PDF document text
    • http://teppich-bayat.de/kcfinder/upload/files/lexuwafu.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/64941146182.pdfIn PDF document text
    • https://ivanamihic.com/files/jowupozixakemimiziz.pdfIn PDF document text
    • https://sunuf.co.za/XSRYdR1H?utm_term=mona+lisas+and+mad+hatters+sheet+musicPDF 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 extracted file (font_00_sfnt_off00062371.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00062371.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00062371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62371 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00063a91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A91 10728 bytes
SHA-256: dd6ecae9e340de985ade5d68837002191ec85a7b8108aff32426bfddb2e28d0d
font_02_sfnt_off000652fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652FE 18852 bytes
SHA-256: 505bea28cd0702a2185b0d813955f3bcafa78c9c846a897329e0c5925f52c14e
font_03_sfnt_off000684d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684D8 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa