Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6907433f5570ff…

MALICIOUS

PDF

392.9 KB Created: 2022-04-08 08:58:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 8ac7a5b4345a4184eaac12121bd74bfc SHA-1: b225c3e0bbbb54a401d7a1437b42487e39d4787c SHA-256: ca6907433f5570ff2e8a1c9b90f23b3c0821bca62078f061c61e29b14899f4d5
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6715

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://wafifeberir.weebly.com/uploads/1/3/2/6/132682897/deliregenakazatejedi.pdf In PDF document text
    • https://fuwelobuzade.weebly.com/uploads/1/3/4/6/134649994/5060340.pdfIn PDF document text
    • http://uni-soar.com/userfiles/file/juvufopogitiz.pdfIn PDF document text
    • https://mizededul.weebly.com/uploads/1/3/4/0/134040812/tenemij_jadevi.pdfIn PDF document text
    • https://rapalavosifezo.weebly.com/uploads/1/3/4/8/134886177/6233650.pdfIn PDF document text
    • https://vavaxurose.weebly.com/uploads/1/3/0/7/130775274/440275.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/7ab8b3e37e8a7eb99bb5a8f4e8330d64/kabagow.pdfIn PDF document text
    • https://pokumowudo.weebly.com/uploads/1/3/0/7/130740164/4d0144aa7334.pdfIn PDF document text
    • https://sistemagestiondpr.com/userfiles/file/1845977703.pdfIn PDF document text
    • http://sitarofindiamd.com/userfiles/file/mudedoruba.pdfIn PDF document text
    • http://opersan.com/file/gepidexi.pdfIn PDF document text
    • https://dozunetad.weebly.com/uploads/1/3/4/4/134472758/zewedolorenex.pdfIn PDF document text
    • http://albergocavour.com/userfiles/files/gekubisifusigidofizujat.pdfIn PDF document text
    • https://subhagataguesthouse.com/userfiles/file/60647186261.pdfIn PDF document text
    • https://kazilapematif.weebly.com/uploads/1/3/5/2/135293457/nixasemupur.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/2ra5et98036job3km8m6brktq2/86804547970.pdfIn PDF document text
    • https://pujosudenavi.weebly.com/uploads/1/3/4/5/134508056/9558399.pdfIn PDF document text
    • https://ekinyalitim.com/depo/sayfaresim/file/93234692097.pdfIn PDF document text
    • https://duragloss.pl/userfiles/file/sobane.pdfIn PDF document text
    • https://luckyfood.itweald.com/uploads/files/62333e96a8467.pdfIn PDF document text
    • https://mufalugibesenu.weebly.com/uploads/1/3/1/4/131453255/3322358.pdfIn PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623e0eba65ee9---nuwibi.pdfIn PDF document text
    • https://zaxiradijewebox.weebly.com/uploads/1/3/4/8/134889682/2570825.pdfIn PDF document text
    • http://teplo76.ru/uploads/file/4069166746.pdfIn PDF document text
    • https://fogufapepupol.weebly.com/uploads/1/3/1/8/131871477/4241137.pdfIn PDF document text
    • http://sb555.com/photo/file/mamamotozivowijewe.pdfIn PDF document text
    • https://xn--80adsi4b.xn--p1ai/upload/files/95682851483.pdfIn PDF document text
    • http://waheedullahauto.ae/admin/kcfinder/upload/files/vapomoginitixamebudiwag.pdfIn PDF document text
    • http://emotionpicturesfestival.gr/userfiles/file/99909913679.pdfIn PDF document text
    • http://kavernoklub.com/campannas/file/basoduroxe.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=may+cast+pigsiePDF link annotation
    • https://roxexiku.weebly.com/uploads/1/3/4/4/134445291/gugakamuwiwojetupu.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_off0005af87.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005af87.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005af87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF87 10288 bytes
SHA-256: e26f5e0856b84188262e6c675594095c0b37b04c26cbf82011aa58af2e4471ec
font_01_sfnt_off0005c6ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6EA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0005defc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEFC 20016 bytes
SHA-256: b04e37e63e4241db44a63cb1dd94c7f2a052e9376cfe3d06ba32c9c416bcdc5d