Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d0df9cabd8c50c…

MALICIOUS

PDF

559.8 KB Created: 2022-05-13 22:45:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 82688ffc5333ff7974f61c92927d03d8 SHA-1: 49d1944902b5367530fbca6332d59abf7484267a SHA-256: c5d0df9cabd8c50c36ac922b2c337cfe16114f6ac12ba19e621aa49f86d4bef2
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3985

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 https://mifuj.co.za/XSRYdR1H?utm_term=reading+comprehension+grade+8+worksheet+pdf+download+full+book+free PDF link annotation
    • https://maisonfamillesrimouski.com/scripts/php/xenocode/lib/ckfinder/userfiles/files/lobazelexuluxo.pdfIn PDF document text
    • https://topas-septiki.com/media-temp/img/uploads/files/lutiwo.pdfIn PDF document text
    • https://damiel.eu/userfiles/file/konofokagelagowefepige.pdfIn PDF document text
    • http://tylincms.com/userfiles/files/sageliwuxozevixesoxun.pdfIn PDF document text
    • http://bwa.olsztyn.pl/bwa3/admin/kcfinder/upload/files/zomegexekuzexoj.pdfIn PDF document text
    • https://tungafilm.com/dorceiys/ckfinder/userfiles/files/remij.pdfIn PDF document text
    • https://musejeruz.weebly.com/uploads/1/3/4/7/134740211/6652787.pdfIn PDF document text
    • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/e3e6fe0a95fc4331aabe961ed8b80d19/nodadoraraxemejid.pdfIn PDF document text
    • https://austarpharma.austarchina.com/upload/files/16730393039.pdfIn PDF document text
    • http://edukoc.net/userData/ebizro_board/file/sorus.pdfIn PDF document text
    • https://ribobuwatefinu.weebly.com/uploads/1/3/4/4/134469587/c5e15173.pdfIn PDF document text
    • http://alliance-vietnam.com/upload/files/65744921401.pdfIn PDF document text
    • http://ff-engineering.com/userfiles/files/19443839805.pdfIn PDF document text
    • http://presssimayeshahr.ir/pic/file/19437592295.pdfIn PDF document text
    • https://dozevexenunapaf.weebly.com/uploads/1/3/4/0/134017655/27bb25b4baf46.pdfIn PDF document text
    • https://hamzsabegi60szallo.hu/UserFiles/File/99162832194.pdfIn PDF document text
    • https://lumarize.weebly.com/uploads/1/4/1/2/141251472/zetomigi_tebebanutaja.pdfIn PDF document text
    • http://fszhenjia.com/upfolder/e/files/20220315213503.pdfIn PDF document text
    • http://machinesupplier.cn/data/product/file/202233_6549_248.pdfIn PDF document text
    • http://vkp.ru/upload/global/file/venijeweguwojubi.pdfIn PDF document text
    • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16220448dc264e---59653895983.pdfIn PDF document text
    • http://ekbdrive.ru/ckfinder/userfiles/files/62057606894.pdfIn PDF document text
    • http://skulpt.in/admin/uploads/file/31246336705.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/kmrev6kvmi2gftm7ljcj7nn527/rolenugekuburajeli.pdfIn PDF document text
    • https://ranedesipa.weebly.com/uploads/1/3/1/3/131398497/korod.pdfIn PDF document text
    • https://ngonluathan.vn/images/ckeditor/files/susodujepebobewujif.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_off00084ffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84FFC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00086813.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86813 11740 bytes
SHA-256: 21b87d8bb467c6bb9b0f433411de7015866ce82ec227140a693e3bbb62b50767
font_02_sfnt_off0008837d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8837D 16948 bytes
SHA-256: bf5e54bb795fc966a3b7d5462e24251aefc2a6a29407ac667498ec5a65ba0852