Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8740f57de6a9465…

MALICIOUS

PDF

372.8 KB Created: 2022-01-10 02:57:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 6028e1f65f43caa84e1dbe9c1cc392ff SHA-1: fc89fc5fa25d21ce9e88f2a89d9bbe65939ff99b SHA-256: f8740f57de6a9465e5f70ddea0d235df9104972e6f039b727361f89c46bf00ba
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6486

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://xn--pssa17sw71b.tw/upimages/files/57474898959.pdf In PDF document text
    • https://vwb.mrv-educationservices.com/content_file/files/nezow.pdfIn PDF document text
    • http://lemma-studio.pl/userfiles/file/bofifepi.pdfIn PDF document text
    • https://gres-k.cat/userfiles/file/zepoka.pdfIn PDF document text
    • http://snbedu.com/uploadfile/file///2021111314211019.pdfIn PDF document text
    • http://www.heksan.com.pl/file/zifotesupox.pdfIn PDF document text
    • http://www.amanuttarakhand.org/ckfinder/userfiles/files/wixijebaji.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1616a257e975a1---20504248553.pdfIn PDF document text
    • http://kondicionery-krasnogorsk.ru/upload_picture/file/kerokasulepopalixu.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16143eeb3f3fdf---18667045283.pdfIn PDF document text
    • http://jjw-led.com/userfiles/file/20064702844.pdfIn PDF document text
    • https://funcarele.com/ckfinder/userfiles/files/zelesumakomilij.pdfIn PDF document text
    • https://vinatech.com/userfiles/file/xijizixab.pdfIn PDF document text
    • https://aawyx.com/sites/default/imageuser/file/tonasowupibajusu.pdfIn PDF document text
    • https://performanshost.com/calisma2/files/uploads/10401219994.pdfIn PDF document text
    • http://savemaxint.com/files/file/18710400075.pdfIn PDF document text
    • https://mandarinkinesiska.com/userfiles/file/ziboxoba.pdfIn PDF document text
    • https://radmangroup-ye.com/rgfiles/file/93110634467.pdfIn PDF document text
    • http://digitalpolicycouncil.org/imagenes/file/18900974818.pdfIn PDF document text
    • https://www.pelicanfinancialnetwork.com/ckfinder/userfiles/files/84289605614.pdfIn PDF document text
    • https://machinex-machines.com/UserFiles/File/31488029212.pdfIn PDF document text
    • https://editions-tlp.fr/ckfinder/userfiles/files/befebix.pdfIn PDF document text
    • https://panasonicenergy.sk/editors/ckeditor/plugins/kcfinder/upload/files/41240610989.pdfIn PDF document text
    • http://sitaudit.gov.bd/assets/ckeditor/kcfinder/upload/files/vujositojobelaronuten.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/23D8k0Ec_6w/uplcv?utm_term=asagao+to+kase-+sanPDF 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_off00055434.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55434 18024 bytes
SHA-256: 7daf582ae8a4717c357ab70e9e626357554db2516e02a2887f3cd36d81222268
font_01_sfnt_off0005835b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5835B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000599f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x599F5 5120 bytes
SHA-256: 201d548f62a2049de85a4a8ea685f7bd3a2d4f76eac077c2ca537d43139b0a54
font_03_sfnt_off0005acf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACF3 10152 bytes
SHA-256: 6b300f4cc02e27fa58496325b2298859a36dad6eb74e488f653461327f737722

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