Malicious PDF — malware analysis report

Static analysis result for SHA-256 89fd9efd0b7d3ad7…

MALICIOUS

PDF

496.3 KB Created: 2022-03-02 10:24:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-01
MD5: 7148c137bc89d9a11774a6b43683761a SHA-1: c95efc12ba1db36a9140e860372f7c9e538f1341 SHA-256: 89fd9efd0b7d3ad7e586e8f97d38622d1a71e3fc11333a1707c7256ab86b6c10
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4417

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 http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16200cd9936f35---67860753331.pdf In PDF document text
    • http://www.recko.ru/ckfinder/userfiles/files/69451089112.pdfIn PDF document text
    • http://leaders-adv.net/userfiles/file/40458520353.pdfIn PDF document text
    • http://www.wiseyoga.nl/kcfinder/upload/files/40964003035.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621e9598e0c42---51716976346.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/31f325488d818ad935763f35182b4048/42464684561.pdfIn PDF document text
    • https://aep-tc.com/cache/fck_files/file/4009326319.pdfIn PDF document text
    • https://www.ibbfvhn.org/recursos/kcfinder/upload/files/vovurada.pdfIn PDF document text
    • http://archiw.gbpopatowiec.pl/img/upload/files/40802124084.pdfIn PDF document text
    • https://pma-germanlct.com/uploads/files/xafamuge.pdfIn PDF document text
    • http://www.siposferenc.hu/html/20446482914.pdfIn PDF document text
    • https://elperrocallejero.info/ckfinder/files/60286115925.pdfIn PDF document text
    • http://anzhero-sudzhensk.verlauf-ekb.ru/admin/ckfinder/userfiles/files/93463984222.pdfIn PDF document text
    • http://musorcentrum.around.hu/files/article/file/menubigu.pdfIn PDF document text
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/h3snbe6se61kml1lisvgevjp63/52578324442.pdfIn PDF document text
    • http://perechen-izdaniy.ru/js/ckfinder/userfiles/files/dijumogudi.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1621ed6c173d65---24879635069.pdfIn PDF document text
    • http://noithatachau.vn/webroot/img/files/81417407882.pdfIn PDF document text
    • https://imotibulgaria7.bg/files/files/65160661.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/90404576962.pdfIn PDF document text
    • https://pacantioquia.org/aym_image/files/risirenuvovaz.pdfIn PDF document text
    • http://techdiligence.net/assets/kcfinder/upload/files/55560354121.pdfIn PDF document text
    • http://ladyvenus.it/userfiles/files/fazamebasazixamu.pdfIn PDF document text
    • https://www.anep.it/ckeditor/kcfinder/upload/files/23766807869.pdfIn PDF document text
    • https://sunuf.co.za/XSRYdR1H?utm_term=perforated+sheet+manufacturers+in+nagpurPDF link annotation
    • http://nexxstep.nl/userfiles/file/mobitu.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_off00073e87.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00073e87.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00073e87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E87 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_01_sfnt_off0007546c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7546C 11120 bytes
SHA-256: 72fdf49b69b2812455e8a8d94902785194ed509a6eed76d7e8cece826f58cd59
font_02_sfnt_off00076e0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E0A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off00078525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78525 17388 bytes
SHA-256: a09d6f8988e8437aa19241e29e93d45b372a561ed569ab6b7ddb1a4d8686eec8