Malicious PDF — malware analysis report

Static analysis result for SHA-256 8109308967fb2f33…

MALICIOUS

PDF

98.3 KB Created: 2021-09-13 10:48:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 29bed82d2c85a80119ac20ab1d490e12 SHA-1: 7a747c97305f63b2fd4183e7587a47db4fcc8ff1 SHA-256: 8109308967fb2f3379832d020c23f73940adc742ea6dd9d9571f1be1e2d2fd0d
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating it is a link farm. The embedded URL points to a page that appears to be a lure for 'Naruto Shippuden filler list', likely to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and URL patterns suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9875

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://guide-eq.com/userfiles/file/20210913085814_ianuvs.pdf In PDF document text
    • https://e-tta.com/app/webroot/userfiles/files/14410164462.pdfIn PDF document text
    • http://yournamebadges.com/withyourdog/cms_uploads/file/jimenesesemebikab.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4bcd5097fb5fbee5b9fc59793dd33be2/jafapatu.pdfIn PDF document text
    • http://jamalcar.com/userfiles/file/85787667634.pdfIn PDF document text
    • http://newbusan.net/FileData/ckfinder/files/20210904_C662D2AB40FF9616.pdfIn PDF document text
    • http://thanhnienxp.com/vietkiendo/upload/file/mojodukexuvur.pdfIn PDF document text
    • http://chunmianxian.com/upfolder/e/files/20210901124219.pdfIn PDF document text
    • https://fceresources.com/ckfinder/userfiles/files/wadaminoxaderuwoleb.pdfIn PDF document text
    • https://sanaspinler.com/calisma2/files/uploads/gujosoxafemedaju.pdfIn PDF document text
    • http://modellszerviz.hu/userfiles/file/96321124253.pdfIn PDF document text
    • http://aedelsur.com/contenido/files/42083049159.pdfIn PDF document text
    • https://saint-florentin.charcutier-traiteur.fr/ckfinder/userfiles/files/wibogapamizakanogu.pdfIn PDF document text
    • http://theffirm.com/userfiles/file/23427777774.pdfIn PDF document text
    • http://stavclearing.ru/upload/files/jolasatusomezimo.pdfIn PDF document text
    • https://huanghecables.com/d/files/56611982159.pdfIn PDF document text
    • http://lacasedescaraibes.fr/file/nones.pdfIn PDF document text
    • http://kovove-ploty-brany-zabradli.cz/UserFiles/File/8168723691.pdfIn PDF document text
    • http://saluteebenesseresas.it/userfiles/files/84706931693.pdfIn PDF document text
    • http://movitecnic.com/ressource/site-image/files/42445293200.pdfIn PDF document text
    • http://begues.mobi/userfiles/file/namusemum.pdfIn PDF document text
    • https://it-remarketing.pl/app/webroot/media/files/fesapufuwi.pdfIn PDF document text
    • http://meta-min.com/files/degapodajubezogevuzibover.pdfIn PDF document text
    • https://ntc-container.com/upload/files/11155605392.pdfIn PDF document text
    • http://musicpark-live.com/userfiles/file/8790189896.pdfIn PDF document text
    • http://nakakinpump.kr/fckeditor/upload/file/51998006220.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=naruto+shippuden+filler+list+worth+watchingPDF 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 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_off000117e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117E3 11064 bytes
SHA-256: 202cd568fdbfbcb02fbb28d0aef58b61572ef69c94e55a5e9fc089b5991a8fbb
font_01_sfnt_off00013181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13181 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00014993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14993 19120 bytes
SHA-256: f93832c7e6cceb317b5fc8bba8ae30a56e3dfd1ed4dc8f07efce6c834ea03f57

Open this report in the interactive analyzer, or submit your own file for analysis.