Malicious PDF — malware analysis report

Static analysis result for SHA-256 9492ab405eca58b8…

MALICIOUS

PDF

422.6 KB Created: 2022-02-17 16:48:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-11
MD5: fdd151208d1648c572d0509a7908fce7 SHA-1: 54a600acc25b2bfc41df3fa4f491c9db9c12e864 SHA-256: 9492ab405eca58b85bf8061178fbc909eedfa9ff3e9b1f3f8c0d82efc2032f62
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4896

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 http://francescasciortino.it/userfiles/files/5726256441.pdf In PDF document text
    • http://www.dereformasenalicante.com/archivos/files/50432863235.pdfIn PDF document text
    • http://sspvjd.com/FileData/ckfinder/files/20220130_73487DA4DF1661DE.pdfIn PDF document text
    • http://soluzionebenessere.eu/userfiles/files/xuvuzado.pdfIn PDF document text
    • http://chinnanaidoo.org.za/kcfinder/upload/files/ropowanakatagufurobonolo.pdfIn PDF document text
    • http://recuva.kr/upload/fck_img/1637248299/file/zosirutonagirepuxusixeze.pdfIn PDF document text
    • https://vietfun.com.vn/wp-content/plugins/super-forms/uploads/php/files/p5bgvk57trduaqlievre7ibnos/mujuvalapekopo.pdfIn PDF document text
    • http://avanti-kuhni.ru/upload/files/tapawegomat.pdfIn PDF document text
    • http://goldenstarhotel.vn/images/uploads/files/jiwuwaxotisotusevafu.pdfIn PDF document text
    • http://malagi.pl/user-files/fck/file/28526568983.pdfIn PDF document text
    • http://chenruichem.com/upload/files/44981036033.pdfIn PDF document text
    • http://urjabatteries.in/userfiles/file/fedabijobofexitixap.pdfIn PDF document text
    • https://swagath.co/new/ckfinder/userfiles/files/garotemubetudefugo.pdfIn PDF document text
    • http://isotech.si/uporabnik/file/murevotufok.pdfIn PDF document text
    • http://huzatfokozo.hu/editor_up/wefununovod.pdfIn PDF document text
    • https://psfund.org/public/uploads/files/cms_files/74876436280.pdfIn PDF document text
    • http://lohoithaiduong.com/uploads/files/ninisem.pdfIn PDF document text
    • http://lamgi.pl/ckfinder/userfiles/files/42771912863.pdfIn PDF document text
    • https://www.znackakvality.info/files/duborixatefebofesususemi.pdfIn PDF document text
    • http://circolosilverblufitnessclub.eu/userfiles/files/gekagawakujubodiginukupov.pdfIn PDF document text
    • https://vivaldiroberto.com/img/files/mediafiles/file/berod.pdfIn PDF document text
    • http://landroverbh.com/ckfinder/userfiles/files/vikizokulebojuwo.pdfIn PDF document text
    • http://giovanninociti.com/userfiles/files/jateraxi.pdfIn PDF document text
    • http://vekosgroup.ru/userfiles/file/tajaduwemape.pdfIn PDF document text
    • http://bjsixiang.com/jingkelun/userfiles/files/20210714062507.pdfIn PDF document text
    • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1616f61ada335b---72621062101.pdfIn PDF document text
    • http://bedrucken24.de/userfiles/file/nunonodelofemejo.pdfIn PDF document text
    • http://tuhocxuatnhapkhau.com/uploads/ckfinder/files/wemerun.pdfIn PDF document text
    • http://ottuk-e.org/userData/board/file/nedazakazafiwigamogo.pdfIn PDF document text
    • https://wtmasonry.com/ckfinder/userfiles/files/faxaxuzil.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/noitbmv5nb4j6vf8m5369pl3q0/36569063758.pdfIn PDF document text
    • http://hanleyresources.com/images/8608019837.pdfIn PDF document text
    • https://chasselas-de-moissac.com/assets/kcfinder/upload/files/33989366506.pdfIn PDF document text
    • http://greenmodels.ru/uploads/files/rawexopereno.pdfIn PDF document text
    • https://yauspeshen.com/ckfinder/userfiles/files/nobitafovowubanakupugozul.pdfIn PDF document text
    • http://avstralianature.ru/ckfinder/userfiles/files/3874543160.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=verbs+present+tense+worksheet+for+grade+2PDF link annotation
    • 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_off00062c6d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00062c6d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00062c6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C6D 17436 bytes
SHA-256: 6da68aa01335ee135c46dd55c9c595cb5ff3265d6fdcd5682494abfe41d5fcdd
font_01_sfnt_off000659d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x659D0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000670f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670F0 11044 bytes
SHA-256: 6ea46188bb0718af87e98bb60e7daa05ae72683ecb7ddff33711b90f2e3baa4a