Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dc646d62be17f9…

MALICIOUS

PDF

399.0 KB Created: 2022-03-05 05:48:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 202a29e6009665836f8f67495b686dca SHA-1: a9627b6404fefdc4919f814c1e605a9a8ffa3e79 SHA-256: c5dc646d62be17f94b76cd348a0fe6a4caeec2a83884b3e840b3b7630fdcb610
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6486

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://cafij.co.za/XSRYdR1H?utm_term=android+9+update+samsung+note+8 PDF link annotation
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/162112fdf6c0da---xexabel.pdfIn PDF document text
    • http://www.pilartangguh.com/file/71370710971.pdfIn PDF document text
    • http://opuspointpartners.com/ckfinder/userfiles/files/velaro.pdfIn PDF document text
    • http://zavodmdu.ru/userfiles/files/zobabugenuxagazevagijos.pdfIn PDF document text
    • https://midlanddevelopers.com/backend/web/kcfinder/upload/files/gogenovovakakal.pdfIn PDF document text
    • http://scelosal.org/ckeditor/kcfinder/upload/files/79871565636.pdfIn PDF document text
    • https://milliondollardesiclub.com/upload_files/featured/files/bajumevik.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620a043eca878---76148105536.pdfIn PDF document text
    • https://refmexgl.com/web/uploads/assets/userfiles/file/zogate.pdfIn PDF document text
    • http://tks-forever.com/upload/2022/02/12/file/kevodetomavokogemuzad.pdfIn PDF document text
    • https://alhouti.com/userfiles/file/39847044980.pdfIn PDF document text
    • http://35ct1.com/images/ckImageFiles/files/88050346023.pdfIn PDF document text
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/162015feb95872---25899846371.pdfIn PDF document text
    • http://labemweller.medianet-shop.de/userfiles/editor_files/file/71275093466.pdfIn PDF document text
    • http://alzinda.fr/ckeditor/kcfinder/upload/files/24586364678.pdfIn PDF document text
    • https://pqclass.kr/imgs/file/46455269344.pdfIn PDF document text
    • http://www.bc-arman.kz/ckfinder/userfiles/files/95566554020.pdfIn PDF document text
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/f648ba48df02343875bbd86e8207ecaf/88587365981.pdfIn PDF document text
    • http://www.impactit.in/ckfinder/userfiles/files/luruwepumanebalenunutebap.pdfIn PDF document text
    • https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/wupaxifesopatawopunet.pdfIn PDF document text
    • https://vrm.vn/kcfinder/upload/files/58664177065.pdfIn PDF document text
    • http://levne-pohary.cz/UserFiles/File/21589138194.pdfIn PDF document text
    • https://truonggiangcompany.com/userfiles/file/gimamobex.pdfIn PDF document text
    • http://mot-a-mot.fr/kcfinder/upload/files/45680653626.pdfIn PDF document text
    • https://autoserviziparlatore.it/filesUploads/file/pakete.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005bfb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BFB8 11148 bytes
SHA-256: 98a8a1152c8546eae7b8ee40a92a419547c65ac9391d92bd60921f25e20885c7
font_01_sfnt_off0005d993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D993 19972 bytes
SHA-256: 9aff3160ab5307a0d98ad5a2a115da0c2c7d79a25bf9f3a78ce13364b51ce58b
font_02_sfnt_off00060c98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C98 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off000623ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623AE 1888 bytes
SHA-256: 228445a3744f13af4bf84041e55802a923554d86926eb0745489ea117e4ab105