Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab83de0be96d7a0…

MALICIOUS

PDF

264.2 KB Created: 2021-12-02 23:26:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-03
MD5: aef5d0bf1c46ec8fa873f08f32d8c1a6 SHA-1: f514966e3941a3f199755a6583de2407d59b9ee1 SHA-256: fab83de0be96d7a064a0be8d8681aa5359025aaa347727585e2a2379eb742039
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5451

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 https://bokaichenyu.com/upload/files/ziwunun.pdf In PDF document text
    • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d90c9607e1---20040208592.pdfIn PDF document text
    • https://implantsdentairesdesmoulins.com/upload/editor/file/87295465295.pdfIn PDF document text
    • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f2212dc5b2---dajabopaj.pdfIn PDF document text
    • http://yaqeen-eg.com/userfiles/file/79742491939.pdfIn PDF document text
    • https://degardo.hollandpazsit.hu/ckfinder/userfiles/files/vomuraxukevoj.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144dd5973a1e---87161405300.pdfIn PDF document text
    • http://ride-on-earth.com/images/blog/file/pifopozadesekinevudap.pdfIn PDF document text
    • http://sllight.ru/design/img/upload/file/kajibilakokagukanitu.pdfIn PDF document text
    • http://studiobaldizzone.com/userfiles/files/65632107849.pdfIn PDF document text
    • https://beehaviour.nl/userfiles/file/mazetuvawus.pdfIn PDF document text
    • http://muabannhagiare.net/images/uploads/files/rofof.pdfIn PDF document text
    • http://rungruangsteel.com/public/upload/userfiles/files/rirogazurow.pdfIn PDF document text
    • http://max-metal.pl/gfx/file/84847620692.pdfIn PDF document text
    • http://abwingsde.com/uploads/files/75255841803.pdfIn PDF document text
    • http://promocode.lu/userfiles/files/motijives.pdfIn PDF document text
    • http://kientrucsangtrong.com/plus/files/90051379380.pdfIn PDF document text
    • https://tramhuonghanoi.vn/upload/files/wizutokavarumelaveb.pdfIn PDF document text
    • http://trumoi-khutrung.com/upload/files/65218401405.pdfIn PDF document text
    • http://lpc2529.com/piceditor/file/bobatisudewedepimutem.pdfIn PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1614356ff80cd1---luzofuxetivariwaribofir.pdfIn PDF document text
    • http://cn-junsheng.com/upload/file///202191934449279.pdfIn PDF document text
    • http://congtyvima.com/images/Download/47308761553.pdfIn PDF document text
    • http://clinical-pain.com/pds/userfiles/files/55708719101.pdfIn PDF document text
    • http://3colorjazz.com/fckeditor/userfiles/image/ravali.pdfIn PDF document text
    • http://boldino-hotel.com/ckfinder/userfiles/files/bixiluludid.pdfIn PDF document text
    • http://terezmisszio.eu/files/file/98660323470.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/2I9n2o-U8HI/uplcv?utm_term=building+an+empire+brian+carruthers+free+downloadPDF 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_off0003aa15.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003aa15.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003aa15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AA15 11448 bytes
SHA-256: dec0eeb2e58366419610ccbda6b803b84d8470a68b8ebf52d9f0b838be215765
font_01_sfnt_off0003c488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C488 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0003db29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DB29 20248 bytes
SHA-256: 4932d882ec8d9230d2fa0fcc4a780f13e6eb511413aeb502eb8a8d0110354b7b