Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9beade380627060…

MALICIOUS

PDF

98.2 KB Created: 2021-07-02 05:03:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: fb32559693517e67ba03d3a657c7c025 SHA-1: 67f8785fedab707e2248eaacdefa11102a59402e SHA-256: e9beade380627060a345ebe597306c583e473429cc94eadf6664b0b498d40a46
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm or phishing lure. The embedded URLs, such as 'https://drafthe.ru/uplcv?utm_term=sonic+the+hedgehog+2020+full+movie+123movies', are designed to trick users into visiting malicious sites by appearing to offer popular content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9886

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://drafthe.ru/uplcv?utm_term=sonic+the+hedgehog+2020+full+movie+123movies PDF link annotation
    • http://bpabv.nl/uploadfiles/file/wolifikabisevakurosomu.pdfIn PDF document text
    • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/7c7521d693cc0f1c882c8fefd91568c0/werowufevewix.pdfIn PDF document text
    • http://nuovojob.com/userfiles/files/69744949354.pdfIn PDF document text
    • https://hotel-la-licorne.fr/userfiles/file/38163393628.pdfIn PDF document text
    • http://kayapaliinsaat.net/file/3847687538.pdfIn PDF document text
    • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d37d4b21ee7---ruvimefemabefikopujem.pdfIn PDF document text
    • http://xn----9sbbnbtte4cyg.xn--p1ai/ckfinder/userfiles/files/12693358182.pdfIn PDF document text
    • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/e3d5410ef013a0583fa06abd1b6b6c57/64115488089.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/73g6qj6b5sukdcgrcl15oc6oiq/89786471139.pdfIn PDF document text
    • http://chromowane.com/userfiles/file/71565112323.pdfIn PDF document text
    • http://anpo.vn/upload/files/napubeniwopapunuzapovon.pdfIn PDF document text
    • https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/5d337a1b5bb267a4d6290b616b27c43c/nagazapedatomuv.pdfIn PDF document text
    • http://cnzgks.com/userfiles/file///ramujawanajevozomez.pdfIn PDF document text
    • http://noospc.ru/SITE/files/editor/file/57883061443.pdfIn PDF document text
    • https://surupaceanu.ro/ckfinder/userfiles/files/xujufuxifajudezuwizemoluz.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b55c22672a7---fagifireranu.pdfIn PDF document text
    • http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/13036649501697e06592a6eb268415db/vojulavevoxugawat.pdfIn PDF document text
    • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/cpu4ad8c694hlnqp8kfpndh69n/48834005668.pdfIn PDF document text
    • http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/nixenofuriwoxekezuzom.pdfIn PDF document text
    • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/160738629ecdb9---rotadil.pdfIn PDF document text
    • http://astro2sphere.com/admin/images/file/19112887315.pdfIn PDF document text
    • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1606d7e9ec1f8f---57410672513.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608421d335a54---26233690938.pdfIn PDF document text
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000100fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100FC 11368 bytes
SHA-256: 132fda1d4674003ac7f5cb391b5a804c1f76c03ffbb52c7945540cfe6ec01452
font_01_sfnt_off00011b7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B7A 16756 bytes
SHA-256: 516e2a8bf89739265f02aada03c983c7857e6e85fe20b57724116cce36b5f090
font_02_sfnt_off00013233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13233 18360 bytes
SHA-256: 40b1f4a31dea1286d7cdc64f9456ee069f8d0a1bbbc1cb934a0f0eb0f3770b95
font_03_sfnt_off000162be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x162BE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1