Malicious PDF — malware analysis report

Static analysis result for SHA-256 258008a67f2ecc61…

MALICIOUS

PDF

311.0 KB Created: 2022-02-23 07:13:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 9c2a2a96213716a8cb307fb3f8e91829 SHA-1: 24d2b06a6484f86a6da174bf0610e63ecb1fa8f2 SHA-256: 258008a67f2ecc612a4f7f1f3cf87ef8fa030ed693aa610774ebcde6b0917e40
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5955

Heuristics 6

  • 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.
  • 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://agri-mal.pl/userfiles/file/vimokimofuwexamut.pdf In PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e57318c77ba---39151445757.pdfIn PDF document text
    • http://pphjako.pl/userfiles/file/15525860332.pdfIn PDF document text
    • http://ageddfjtj.pretty-match.com/upload/files/nuzivowomobunopew.pdfIn PDF document text
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/aab0c968ae2333d4e9b51e040866a5ae/zakikubomibovumobeputenuv.pdfIn PDF document text
    • http://mobilahomedesign.com/userfiles/files/38855327469.pdfIn PDF document text
    • http://xatrbio.com/userfiles/file/nonasel.pdfIn PDF document text
    • http://pnc21.com/files/fckeditor/file/124653877561fce0ef9c1b0.pdfIn PDF document text
    • http://denge.aero/upload/files/2381037681.pdfIn PDF document text
    • http://tygodnikzuzlowy.pl/ckfinder/userfiles/files/nofujoganazutowakaj.pdfIn PDF document text
    • https://sarenpinler.com/calisma2/files/uploads/92520260994.pdfIn PDF document text
    • http://fantalife.nl/userfiles/file/tixozugef.pdfIn PDF document text
    • http://naso10.com/userData/board/file/vegowomezojerivebuk.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/83dpr4tp276t9mvummcvfi3plm/najolotiriwevoravomegon.pdfIn PDF document text
    • https://namratalakhotia.com/userfiles/files/jepipamebajag.pdfIn PDF document text
    • https://bakwanudang.com/contents/files/zafinudixotiwo.pdfIn PDF document text
    • http://otoozevran.com/resimler/files/52090090853.pdfIn PDF document text
    • https://dakotaterritorydevelopment.com/ckfinder/userfiles/files/23232086546.pdfIn PDF document text
    • http://77owship.netsociality.com/upload/files/ziwixutaroxepupuvuzo.pdfIn PDF document text
    • https://xaydungdonggia.com/app/webroot/files/images/pages/files/36145513261.pdfIn PDF document text
    • http://dulwichtaxi.com/survey/userfiles/files/gigetozelezoga.pdfIn PDF document text
    • https://martensmgt.com/business_school/uploads/file/vakonan.pdfIn PDF document text
    • http://ktcz.eu/files/files/gikilazadajemuse.pdfIn PDF document text
    • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/qbs93a6kjpuapt4raur84lvsf4/1809900429.pdfIn PDF document text
    • http://redemaisfarma.com/userfiles/file/venunupadijibit.pdfIn PDF document text
    • https://bursakaynak.com/userfiles/file/28129285869.pdfIn PDF document text
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cdf23187cb8---57964456598.pdfIn PDF document text
    • https://shieldtech.cz/ckfinder/userfiles/files/mimugez.pdfIn PDF document text
    • https://consurs.ro/ckfinder/userfiles/files/72868326115.pdfIn PDF document text
    • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/f03e19f2358304e7949040900981bd89/zasapofejeg.pdfIn PDF document text
    • http://eternoohydro.com/d/files/34817173634.pdfIn PDF document text
    • http://stsaischoolamritsar.com/slbdavbatala/userfiles/file/botipa.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=electro+galvanized+steel+sheet+%E4%B8%AD%E6%96%87PDF 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_off000447be.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000447be.bin)

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000447be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x447BE 19328 bytes
SHA-256: 912103e3554b4e96289888925c683f594e1c3ee0f4d394d173391d3651fee1a8
font_01_sfnt_off00047b35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47B35 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00049255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49255 10760 bytes
SHA-256: ef4dbbcec8ebb0e773c52219d11792b7c78ef3d7bad06b970f12b6a86e6eecfc
font_03_sfnt_off0004aad9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AAD9 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_04_sfnt_off0004c0b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C0B5 1860 bytes
SHA-256: 562d39cc93351683f3420870a5578826c1285db13c691c08f99be18f4980e560