Malicious PDF — malware analysis report

Static analysis result for SHA-256 25cd82230c2c2a9e…

MALICIOUS

PDF

147.5 KB Created: 2021-12-02 07:51:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: c1c36ad49849c2db2e7cb3f730f32c96 SHA-1: a975d51f0ee9356e2fea99714dcc6183e8cc56de SHA-256: 25cd82230c2c2a9e99c658097c700abea109855fa6e75f8aa48e5886ba3d2cc2
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9567

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://motivationandmomentum.net/ci/userfiles/files/52263198894.pdf In PDF document text
    • http://decaldankinh.net/upload/files/15523710329.pdfIn PDF document text
    • https://aprilboya.com/userfiles/file/wosiru.pdfIn PDF document text
    • https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/38394c9b455ff34980a9ec5ddcbd55ec/rowawujiluwuzofufalig.pdfIn PDF document text
    • http://longbienco.com/js/ckfinder/userfiles/files/lebewifowonuwisuluto.pdfIn PDF document text
    • https://ystechpro.com/nbloom/fckuploads/file/xagopoxowofinakifik.pdfIn PDF document text
    • https://nomortiga.com/contents/files/kakabifisavikumimu.pdfIn PDF document text
    • http://alumcity.ru/userfiles/file/52890656503.pdfIn PDF document text
    • https://ikomsolutions.com/admin/userfiles/file/ramaxusegexofoveduwapebi.pdfIn PDF document text
    • http://radiopoint.cz/userfiles/file/9484677898.pdfIn PDF document text
    • http://sgpeo.pl/users/file/64851008213.pdfIn PDF document text
    • http://6nergy.fr/6nergy/sites/default/user/file/sixofawojip.pdfIn PDF document text
    • https://info-jimukyoku.jp/lot/upload/files/wuzoda.pdfIn PDF document text
    • http://lsmtrontractor.com/upfiles/file/20211024104946.pdfIn PDF document text
    • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1619b58a613ada---41143589392.pdfIn PDF document text
    • http://fairbank-ia.org/admin/ckfinder/userfiles/files/semazepev.pdfIn PDF document text
    • http://lavalnerina.it/userfiles/file/dopesaresumavebin.pdfIn PDF document text
    • http://mp-hd.de/data/aktualnosci_imgs/file/13609672961.pdfIn PDF document text
    • https://cancelaria.pl/galeria/file/lidujamirovogeduro.pdfIn PDF document text
    • https://5a.ro/ckfinder/userfiles/files/84747431102.pdfIn PDF document text
    • http://printific.com/images/contentimages/files/23280372117.pdfIn PDF document text
    • http://emilybarnes.com/DEVELOPMENT/VERSIONED/emilybarnes/trunk/sites/default/files/file/jixatumepe.pdfIn PDF document text
    • https://twr1115.net/files/fckeditor/file/tigasux.pdfIn PDF document text
    • http://salocchi.it/userfiles/files/39731925163.pdfIn PDF document text
    • https://krisoc.ru/uplcv?utm_term=walt+disney+concert+hall+seating+chart+pdfPDF link annotation
    • https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/9u5pnn4qbgoamed5ijlgpieir3/8104048693.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 extracted file (font_00_sfnt_off0001e0bb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001e0bb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001e0bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E0BB 11004 bytes
SHA-256: 4940f05ccb33adfa03b33d2aef141b57c0b84e7bdf42941b5d15082e489b2bae
font_01_sfnt_off0001fa0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FA0C 17796 bytes
SHA-256: cc10208fd4c17aa720a621d55836275cee89d2ce974929826536739178931325
font_02_sfnt_off00022841.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22841 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336