Malicious PDF — malware analysis report

Static analysis result for SHA-256 468a6b225272f187…

MALICIOUS

PDF

69.8 KB Created: 2021-09-30 12:25:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 7c18ec72addc250402ae106befe23693 SHA-1: 83eb43322e2ac44b99b3c641d4d1dd6a72298f94 SHA-256: 468a6b225272f1871164d7331693f5368fbfb829b802937d1d7a687f0a34ebe6
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a high number of external links, many pointing to unknown domains, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript is likely used to facilitate the redirection or download of further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://maharajganjtimes.com/assets/ckfinder/core/connector/php/uploads/files/modemivomur.pdf In PDF document text
    • http://np-laser.com/upload_fck/file/2021-9-21/20210921073110452630.pdfIn PDF document text
    • http://foxgraphics.paulsfashion.in/files/59033017949.pdfIn PDF document text
    • https://dalycity.com/wysiwygfiles/file/pokomezubexevo.pdfIn PDF document text
    • http://birkhoffhi.com/userfiles/files/38874086562.pdfIn PDF document text
    • http://tc-antey.ru/uploads/files/61965144096.pdfIn PDF document text
    • https://denimder.org/resimler/files/faredawu.pdfIn PDF document text
    • https://feltshoe.com/userfiles/file/14757074682.pdfIn PDF document text
    • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/3df3ab041079d187884e24e15437bf26/mesaliponogilamuwu.pdfIn PDF document text
    • https://hondaotohaiphong.vn/upload/files/79420144202.pdfIn PDF document text
    • https://bestrecycledautoparts.net/images_i/file/fajukikejegulokono.pdfIn PDF document text
    • http://vxclouds.com/userfiles/file/zakowemagujepel.pdfIn PDF document text
    • http://www.ferm-matic.fr/upload/file/43917529793.pdfIn PDF document text
    • http://kowel.com/ckfinder/userfiles/files/1632329210.pdfIn PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/161430e3e9cbbf---rudovo.pdfIn PDF document text
    • http://yejiya.com/userfiles/file/vedudo.pdfIn PDF document text
    • https://ikitellirezistans.com/upload/files/kunew.pdfIn PDF document text
    • https://deltarealestate-eg.com/userfiles/file/sogani.pdfIn PDF document text
    • http://moto-bike.pl/userfiles/file/jines.pdfIn PDF document text
    • http://www.ih-consultant.com/ckfinder/userfiles/files/bugureburaw.pdfIn PDF document text
    • http://ahnil.com/userData/board/file/57660626295.pdfIn PDF document text
    • https://cooperadora.grupocreartel.com/documentos/archivos/12433671677.pdfIn PDF document text
    • http://factory-01.com/js/upload/files/25986347760.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=tagalog+movies+free+download+sitesPDF 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_off0000afc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFC5 10812 bytes
SHA-256: d3e548187785d35676527ab64760cadc4ea313ccd2cdc8b476ac7ef181ae0fc7
font_01_sfnt_off0000c890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC890 16024 bytes
SHA-256: 9dd49086e1bd7c42d119257b9320f9578e7ebf0d47188038f7124fd1b36e9a8a
font_02_sfnt_off0000f181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF181 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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