Malicious PDF — malware analysis report

Static analysis result for SHA-256 fabb58e3eed3a004…

MALICIOUS

PDF

216.4 KB Created: 2022-01-20 07:25:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-03
MD5: 440b392f8bad11bbaf99c16b2ce2d5c8 SHA-1: 5db3facc43a5fe9d62436ba3168922f3af17687c SHA-256: fabb58e3eed3a004b739cf4191c074bf291c6ad53e743552a9b6d84515602235
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7583

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://bioengenharia.com.br/public/libs/kcfinder/upload/files/pebirexawafafasasu.pdf In PDF document text
    • http://medicapoland.pl/uploaded/file/5165838376.pdfIn PDF document text
    • http://allefrgycg.news-read.com/upload/files/semowebafibibajinirejez.pdfIn PDF document text
    • http://hoangminhphatkorea.com/webroot/img/files/68198973256.pdfIn PDF document text
    • http://www.lalorraineperdue.com/documents/44896286298.pdfIn PDF document text
    • http://dobrejaja.com/Upload/file/gitadujaf.pdfIn PDF document text
    • https://showerdrainplus.com/uploads/files/202201062121432889.pdfIn PDF document text
    • http://cgl.lu/userfiles/files/20788837700.pdfIn PDF document text
    • http://mpti.ru/userfiles/file/63046329640.pdfIn PDF document text
    • http://www.vlaamspatientenplatform.be/_plugin/ckfinder/userfiles/files/tuxepovisezigasulubuk.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150f08c162f7---nawopanikit.pdfIn PDF document text
    • https://bosingels.nl/ckfinder/userfiles/files/67656962715.pdfIn PDF document text
    • http://rund-sro.cz/UserFiles/File/37541206112.pdfIn PDF document text
    • http://cornucopiafrederick.com/uploads/files/judutupe.pdfIn PDF document text
    • https://affze.com/userfiles/file/54291638739.pdfIn PDF document text
    • http://kondicionery-bronnitsy.ru/upload_picture/file/vavanipu.pdfIn PDF document text
    • https://kocarbonag.com/luutru/files/71424639711.pdfIn PDF document text
    • https://e-s-c.fr/lib/ckeditor/kcfinder/upload/files/72038846108.pdfIn PDF document text
    • https://cakenepal.com/userfiles/file/70478379682.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161559be49aae6---59139286927.pdfIn PDF document text
    • https://studioconcept-stand.com/fck_userfiles/file/93045184606.pdfIn PDF document text
    • http://adams-gold.ru/archive/image/file/detojisegesexaremunexewul.pdfIn PDF document text
    • https://shevian.com/images/file/farunezedokujogusewivapag.pdfIn PDF document text
    • http://apartament-krokus.pl/userfiles/file/wevuvedekut.pdfIn PDF document text
    • http://gestioniarmatoriali.it/madodef.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/7588ad9ab1c77243e1963fb93bb75e96/18001544009.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/4dZi1sgP-vI/uplcv?utm_term=distrophie+canaliforme+de+hellerPDF 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_off0002f69f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002f69f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002f69f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F69F 16808 bytes
SHA-256: 01bc6a588d3d07bba1764185a53117acbc392df632966fe343acb374d26778b3
font_01_sfnt_off0003215c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3215C 10888 bytes
SHA-256: 7ab0881fb4359db9c16c8d6a60ccfb65dcf3f80d62bd1e3528dbef02bdf07ab4
font_02_sfnt_off00033a57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33A57 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336