Malicious PDF — malware analysis report

Static analysis result for SHA-256 3209de65a2cc5cbf…

MALICIOUS

PDF

90.9 KB Created: 2021-09-16 14:35:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 0b4cd5f5d3f2bea96e4330b3e0def26b SHA-1: 94d6ebdbcf000af6cd11b39b09540ce4eb5d96ab SHA-256: 3209de65a2cc5cbfb1414f068de3a5bddd7d0a8121434a7e011487611e11048e
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains embedded JavaScript and functions as a link farm, directing users to various URLs, some hosted on compromised CMS uploads. The presence of embedded JavaScript suggests it may attempt to execute malicious code or redirect the user to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 7

  • 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.
  • 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://anpheatingandac.com/nbloom/fckuploads/file/suxatupixekut.pdf In PDF document text
    • https://alshaabcoop.com/userfiles/file/53332677688.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fcf76cc9ae---61340965957.pdfIn PDF document text
    • http://garagehayashi.com/js/upload/files/tamewavisux.pdfIn PDF document text
    • http://ahkjt.com/upfile/file/1238840806.pdfIn PDF document text
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161318e890fc36---3022973835.pdfIn PDF document text
    • https://o2opr.co/userfiles/files/37634215657.pdfIn PDF document text
    • https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/dapowadinonubupuz.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/furugerubozenunigebe.pdfIn PDF document text
    • http://mwflower.com/upimagesfile///punedixidonubesim.pdfIn PDF document text
    • https://bc2000.order-pro.com/ckfinder/userfiles/files/vodidikedej.pdfIn PDF document text
    • https://ottopianos.nl/files/6255241644.pdfIn PDF document text
    • https://ysh.my/userfiles/file/12546991877.pdfIn PDF document text
    • http://pbhdom.eu/userfiles/file/borowofogiribajunipo.pdfIn PDF document text
    • http://dydlhx.com/upfiles/file///defukusaxadopobejesadafi.pdfIn PDF document text
    • http://quiltingacademy.info/fckeditor/userfiles/file/63732223308.pdfIn PDF document text
    • https://chiataiec.com/userfiles/Proj_Name/files/baleroxefebojukape.pdfIn PDF document text
    • http://okeefesreef.com/ckfinder/userfiles/files/19357822084.pdfIn PDF document text
    • https://grupo-kayros.com/userfiles/file/77175448529.pdfIn PDF document text
    • https://fontan-montag.ru/img/upload/zazaboxokixizog.pdfIn PDF document text
    • http://fmdscu.net/userfiles/file/43385407740.pdfIn PDF document text
    • https://www.gurkhasfinance.com.np/ckfinder/userfiles/files/6266360253.pdfIn PDF document text
    • http://j-club.eu/userfiles/file/47048445041.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613510efe3989---3874357364.pdfIn PDF document text
    • http://charivne.info/images/file/suwevubavaxazisino.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=football+manager+2012+free+download+for+androidPDF 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_off0000fdc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC1 11028 bytes
SHA-256: f282f3fb0f6c70b412f54f6c2abe5f8ae43aadb9b687c69fc8fd96b5d4d4abe3
font_01_sfnt_off00011747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11747 17724 bytes
SHA-256: 3798235e512b75731de8816b87c4c557d74c1ed68ea6509992d315c836513cf5
font_02_sfnt_off0001459a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1459A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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