Malicious PDF — malware analysis report

Static analysis result for SHA-256 79378de11ba0ada6…

MALICIOUS

PDF

255.1 KB Created: 2022-04-12 12:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: db32f07adbe70aee03ef8d83365e9b32 SHA-1: 7701a318156a760ff700c9627452d9216b20aeeb SHA-256: 79378de11ba0ada63bfc9faf6f84ce5f269da7c97391e8a1e897305d6b057db5
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7728

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://fecuq.co.za/XSRYdR1H?utm_term=brainstorming+meeting+format PDF link annotation
    • https://ludajajuxo.weebly.com/uploads/1/3/5/2/135293479/tujubivifuwebofomasu.pdfIn PDF document text
    • http://ns.duolos.com/customer/FaQ/FaQData/files/2717808143.pdfIn PDF document text
    • http://znsedu.net/admin/ckeditor/kcfinder/upload/files/wuzefimovegu.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/b86d9b165333a1c85055dd11a598f1c7/xatakeril.pdfIn PDF document text
    • https://jafadunew.weebly.com/uploads/1/3/4/6/134632108/gezopari.pdfIn PDF document text
    • http://tesorosdelayer.net/imgs/images/files/gokiv.pdfIn PDF document text
    • http://fapannimario.it/userfiles/files/52151410475.pdfIn PDF document text
    • https://www.macfer.com.pt/kcfinder/upload/files/notusi.pdfIn PDF document text
    • http://anantasandesh.com/dbros/public/ckeditor/kcfinder/upload/files/pajeset.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/c8a91ba54f49addcd96e9f567eaf21d7/99715386738.pdfIn PDF document text
    • https://tidevaxapoled.weebly.com/uploads/1/3/5/9/135971763/rijuzem.pdfIn PDF document text
    • http://yule-sign.com/upload/editor/file/20220403055049.pdfIn PDF document text
    • http://gioithieu.btccorp.vn/uploads/files/zafaloxesugapegoku.pdfIn PDF document text
    • http://www.colormotion.cz/UserFiles/file/71041595792.pdfIn PDF document text
    • http://infas.cz/images/wiswig/file/jatas.pdfIn PDF document text
    • https://fiberglasssupplydepot.com/userfiles/file/35643287790.pdfIn PDF document text
    • https://vewawuwidavejo.weebly.com/uploads/1/3/4/4/134403009/d5dcb6cfe.pdfIn PDF document text
    • https://centralleiloes.com.br/admincentral/ckeditor/kcfinder/upload/files/bunomub.pdfIn PDF document text
    • http://www.politico.cnm.org.br/ckeditor_custom/kcfinder/upload/files/31113802500.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/qdhsr47ml8vpdl57frcljo1g2p/xojoxegivukelanexomixuwe.pdfIn PDF document text
    • https://www.jornaloflorense.com.br/admin/ckeditor/kcfinder/upload/files/vivopasiwapojidejazulej.pdfIn PDF document text
    • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/4c1177597aa0ffcbd34934768af5192b/sopebarovapuroginizoku.pdfIn PDF document text
    • http://usefchina.com/uploadfile/file///2022031012300555.pdfIn PDF document text
    • https://cgb-echafaudage.fr/upload/files/lifiwinosijopopebavulubun.pdfIn PDF document text
    • http://sbs-group.co/userfiles/files/kimixeninekonoli.pdfIn PDF document text
    • https://solinov.com/upload/editor/file/95642302421.pdfIn PDF document text
    • https://sistemagestiondpr.com/userfiles/file/siberepanusa.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_off00038db9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38DB9 18160 bytes
SHA-256: aa8c6394f259bae91c29ee66931bf644507302036f9dc7778eb166547e71930a
font_01_sfnt_off0003bd3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BD3E 10564 bytes
SHA-256: 9f1d8c36682d7a3a5568cc786896d9d33efd166df986b0b4ee868815119427ea
font_02_sfnt_off0003d55d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D55D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1