Malicious PDF — malware analysis report

Static analysis result for SHA-256 af26d253205b6f75…

MALICIOUS

PDF

400.9 KB Created: 2022-02-06 09:14:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 5fa5604d4c4c088e29a9f4fc722c4f29 SHA-1: a47763dd7c0a85de5d80316518a1e9fb8fe6ccdf SHA-256: af26d253205b6f75d88b36658742d9ca0dd9f0a654fa272e86f21cd70e2d7442
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7691

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://sunuf.co.za/XSRYdR1H?utm_term=calvin+and+hobbes+ebook+free PDF link annotation
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160ddad200444f---97792814505.pdfIn PDF document text
    • https://habibitours.com/ckfinder/userfiles/files/52973234416.pdfIn PDF document text
    • https://agt.twwebmarket.com/ckfinder/userfiles/files/89401696107.pdfIn PDF document text
    • https://drisraadentalcenter.com/userfiles/file/74198565081.pdfIn PDF document text
    • http://hasdeu.md/data/userfiles/files/42734930038.pdfIn PDF document text
    • http://eros-arena-reutlingen.de/eros/userfiles/file/kisukanaka.pdfIn PDF document text
    • https://panama4d.com/contents//files/16816080793.pdfIn PDF document text
    • https://sibirprokat.ru/ckfinder/userfiles/files/18661506751.pdfIn PDF document text
    • https://2winit.com/Files/files/46630115324.pdfIn PDF document text
    • https://saleskerala.com/ckfinder/userfiles/files/palute.pdfIn PDF document text
    • https://www.seminariosanpiox.it/ckeditor/kcfinder/upload/files/23261037408.pdfIn PDF document text
    • http://dongphuctqueen.com/upload/files/mokofadozeguna.pdfIn PDF document text
    • http://sipsak.nl/userfiles/file/nuxefinizajibomo.pdfIn PDF document text
    • http://mastrodibaglio.it/userfiles/files/93010430624.pdfIn PDF document text
    • http://zhizhencn.com/filespath/files/20210910042506.pdfIn PDF document text
    • http://norilskgu.ru/userfiles/file/wokimovefuxogubori.pdfIn PDF document text
    • http://michael-dhom.com/webseiten/file/tezulagawedasub.pdfIn PDF document text
    • http://855solution.com/htdocs/cljr/data/files/94667962290.pdfIn PDF document text
    • http://chayka-svg.ru/files/mosanopiwurusoduno.pdfIn PDF document text
    • http://cesurmakina.com/userfiles/file/16928007268.pdfIn PDF document text
    • http://posicert.com/upload_fck/file/2022-1-23/20220123040536674753.pdfIn PDF document text
    • https://nevisnews.com/userfiles/gabetokakivipumoju.pdfIn PDF document text
    • http://airconbank.com/upload/fckeditor/file/sanasufamajojijefifasetit.pdfIn PDF document text
    • https://garnet-medical.com/userfiles/files/rabizufusizifog.pdfIn PDF document text
    • http://gzxmbx.com/uploadfile/file/2021120505062273499.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_off0005caad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAAD 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005e1c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E1C8 22828 bytes
SHA-256: 083e5fb8b097232a50702e357c7e3c81cff1e616bc550a56c3ee5827a0a4939a
font_02_sfnt_off00061a42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A42 10680 bytes
SHA-256: 08dc891baf0db0b5118a8aa09046eeb404841e702ea77b924924e7b4f67a026e

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