Malicious PDF — malware analysis report

Static analysis result for SHA-256 7931e0ed077fcf17…

MALICIOUS

PDF

481.1 KB Created: 2022-03-19 19:19:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 4ffa9e7c0460ac27faa7b01070a96ecf SHA-1: 4a03d2b8fde3e8a204d3e9ed881b1f9cf8b57f74 SHA-256: 7931e0ed077fcf17681f0b039098e516b7a8d056c89901e8f4eee18995d43367
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4578

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://colod.co.za/XSRYdR1H?utm_term=feelings%2F+emotions+worksheets+for+kindergarten PDF link annotation
    • http://rosniyom.com/userfiles/files/45602039791.pdfIn PDF document text
    • https://ptkas.com/kingkong/userfiles/files/pudonagizodarifazosoda.pdfIn PDF document text
    • http://izhar-energy.com/userfiles/file/giwegizidonebigixomimaf.pdfIn PDF document text
    • http://talk200.com/admin/admin/uploadfiles/file/nevebug.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/162179babcacb3---91578169607.pdfIn PDF document text
    • http://dc-da27577df984.duragloss.pl/userfiles/file/49509107840.pdfIn PDF document text
    • http://admin.accf-asean-china.com/assets/grocery_crud/texteditor/kcfinder/upload/images/files/38363929007.pdfIn PDF document text
    • http://appartenvue.net/appart/upload/images/radiliparezula.pdfIn PDF document text
    • http://camwater.org/media/files/79798544768.pdfIn PDF document text
    • http://namaslennikova.ru/kcfinder/upload/files/nimamijobu.pdfIn PDF document text
    • http://strandedtattoo.info/file/67027485063.pdfIn PDF document text
    • http://cwpni.com/userData/ebizro_board/file/lawitoxatojawuverekeda.pdfIn PDF document text
    • http://malifer.hu/upload/file/20759721877.pdfIn PDF document text
    • http://www.nstrechy.cz/upload/files/83315150468.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/d77b984d86228c7f094d60fbf7f74191/zuduwasadirulu.pdfIn PDF document text
    • http://wib24-admin.de/uploads/file/wifesekerixax.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/162203a4ca24f9---robedomudumutatodirof.pdfIn PDF document text
    • http://cttinteriery.cz/files/upload/files/7721850571.pdfIn PDF document text
    • https://cmri.ckbirlahospitals.com/controlpanel/kcfinder/upload/files/wenomoxokixoxaponew.pdfIn PDF document text
    • http://meteoratourismactivities.com/files/files/pokinarazivofukamosufojur.pdfIn PDF document text
    • http://fixafilm.se/userfiles/file/23263472823.pdfIn PDF document text
    • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/bb9701bf88d27b1a3bf80ed13c92f5a0/9666798718.pdfIn PDF document text
    • http://alzinda.fr/ckeditor/kcfinder/upload/files/49331254723.pdfIn PDF document text
    • http://shrlie.com/upload_fck/file/2022-3-16/20220316085201767464.pdfIn PDF document text
    • http://do-construction.ch/admin/kcfinder/upload/files/39221163156.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/f8f9b4f368507c9f953a381945d2616d/letem.pdfIn PDF document text
    • http://gnmh.rene-mense.de/fckeditor_files/file/83295001356.pdfIn PDF document text
    • http://happinessgown.com/upload/users/files/zugunovaguworor.pdfIn PDF document text
    • https://delmadang.com/userfiles/file///60769477685.pdfIn PDF document text
    • https://alibaba-cave.com/userfiles/file/bejetodabetaveb.pdfIn PDF document text
    • http://longvu.vn/Images_upload/files/kufowemewiriwatot.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/efdb927f9373bd8a260b610458dda308/55711839112.pdfIn PDF document text
    • https://rowadalbyt.com/userfiles/files/fixisupaniwewofurikuse.pdfIn PDF document text
    • https://www.centralleiloes.com.br/admincentral/ckeditor/kcfinder/upload/files/vapawerekadatolelusufi.pdfIn PDF document text
    • https://nusantarabet4d2.com/contents/files/26890785408.pdfIn PDF document text
    • http://dienhoabacninh.vn/webroot/img/files/1505718409.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_off000718c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x718C2 10992 bytes
SHA-256: 550aeb106dcb37b1a76f4f1fb0ddea0f696cc006fda6ab2b2263af2e0ec5a58b
font_01_sfnt_off000731f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x731F2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0007490e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7490E 16488 bytes
SHA-256: 8023e245e5d2d3b310fb05da8a4739943893f185ca9ca7a0b68dfbedc39e7828