Malicious PDF — malware analysis report

Static analysis result for SHA-256 0220f2dde8af129e…

MALICIOUS

PDF

75.0 KB Created: 2021-09-06 00:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 8de825e901f941627fe9254bbb160d30 SHA-1: ab6954c3935960532a868d858a6381798fa48c1c SHA-256: 0220f2dde8af129ed1aa2eed081e903dde6742e67ffec9537d33f44eafec1c3b
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document functions as a link farm, containing numerous URLs pointing to compromised websites, likely to facilitate phishing attacks or distribute further malware. The presence of multiple links on disposable or compromised hosting further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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
  • 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.
  • 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 https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/bkij3g6tjggloqbc7kjb89rfi2/xuzekitin.pdf In PDF document text
    • http://vamaconsulting.sk/userfiles/file/vozenanikujuxow.pdfIn PDF document text
    • http://www.pattyn360.com/upload/forum/files/mukoduz.pdfIn PDF document text
    • http://abnicum.ru/files/file/salavekibonotavapivaripi.pdfIn PDF document text
    • http://happyland-nsk.net/ckfinder/userfiles/files/povoxirejelu.pdfIn PDF document text
    • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/447121c451ece831525a1213f9adc2f2/zusemidojis.pdfIn PDF document text
    • https://suativisamsungtaihanoi.net/upload/files/28463883124.pdfIn PDF document text
    • http://moscowfashion.net/content/xuploadimages/file/94041554055.pdfIn PDF document text
    • http://polskienarty.pl/data/aktualnosci_imgs/file/14472795536.pdfIn PDF document text
    • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/p7hseqc5k3nufbgckopa4fbdp0/bujujaxipatewesadobovomo.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611a3e4a375be---13012754746.pdfIn PDF document text
    • http://konsultacjenaukowe.eu/Upload/file/vunalulaken.pdfIn PDF document text
    • http://hcvitamin.com/webroot/img/files/4224912849.pdfIn PDF document text
    • https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/25205676a980b41037d454c5e2732848/likigifipavawivediba.pdfIn PDF document text
    • http://senseoftourism.dk/userfiles/file/77169734244.pdfIn PDF document text
    • http://attlas.center/userfiles/file/ruvonip.pdfIn PDF document text
    • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/5heu3bnjcecqsk190a187etair/52931353551.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16129484a6e150---6229664406.pdfIn PDF document text
    • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/bb78352f8e5a36319fe3b4b85dfda4d7/12244057266.pdfIn PDF document text
    • http://blevy.com/ckfinder/userfiles/files/bujupugixoxis.pdfIn PDF document text
    • http://www.europesolidaire.eu/userfiles/files/fuponifudasemisixexu.pdfIn PDF document text
    • https://scavilecis.it/userfiles/file/48700257096.pdfIn PDF document text
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c27d30150aa---rebekunupukagojipeta.pdfIn PDF document text
    • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/vsq2i742j6ankep9pt4v4s2e64/tamewopatobakex.pdfIn PDF document text
    • https://novamakine.com/upload/ckfinder/files/gavogofobadebevenojas.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=post+office+account+opening+form+pdfPDF 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_off0000bf36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF36 11020 bytes
SHA-256: 60aa0d03127c1b16e74f91e03c4d7f2c8a33bebf9754b51cddeea7ece59d5fef
font_01_sfnt_off0000d8a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8A6 17240 bytes
SHA-256: 6643d01b07a83f2f7c4d11079c164346fd91cd9b468167a7a1a49425b7d25373
font_02_sfnt_off000105d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105D8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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