Malicious PDF — malware analysis report

Static analysis result for SHA-256 63d019717321da4e…

MALICIOUS

PDF

104.6 KB Created: 2021-06-26 03:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 6231145fcb1bda1968a525a3a2bb99c3 SHA-1: edcbea978ccf238a8f1e98e74410db97f37d3a74 SHA-256: 63d019717321da4e192f265c72a84fe2591acdb6b8cf91f48ee2f42ace78e345
196 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains an eval() call and is flagged by ML classifiers and ClamAV as malicious, indicating it likely exploits a vulnerability for code execution. The presence of multiple links to compromised CMS upload storage and disposable hosting suggests a phishing or malware distribution scheme. While no scripts were directly extracted, the eval() call strongly implies JavaScript execution within the PDF, which is often used to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9926

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
  • eval() call high PDF_EVAL
    eval() found — commonly used for obfuscated exploit execution
    Matched line in script
       <rdf:Alt>
        <rdf:li xml:lang='x-default'>Medieval music composers.  Wikipedia list article Lists of classical composers by era and century  Medieval (500â  1400) Renaiss</rdf:li>
       </rdf:Alt>
  • 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://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/b49c65dfdbb6e674789a0d0fda0053c6/pejemufivubadazozufovoba.pdf In PDF document text
    • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a0dd4037f98---63550123095.pdfIn PDF document text
    • https://permargi.com/files/galeria/files/38023696646.pdfIn PDF document text
    • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/vvb72vkva3n709nhtk9407esl7/porotagabi.pdfIn PDF document text
    • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/155dc25a5e1ab0f3a7f87921b81e949c/dofotipukudaguxu.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160868c7b7998a---57335207261.pdfIn PDF document text
    • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d521b0f409---23453180209.pdfIn PDF document text
    • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160987d7be1308---telegukavexupenikoze.pdfIn PDF document text
    • http://donaldbermanmaimonidesgolf2021.com/clients/0/0d/0d43fbb8ff91cab41fa1b056c0d912a9/File/tofijatasuwemosapepo.pdfIn PDF document text
    • http://bet-balance.com/userfiles/file/56608984607.pdfIn PDF document text
    • https://hssanesteban.cl/files/gejomejuni.pdfIn PDF document text
    • http://telekommarketing.com/firme_data/files/robotipufeginawobafoxazor.pdfIn PDF document text
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609306d257206---1899458719.pdfIn PDF document text
    • http://0-50.ru/userfiles/file/bafigoxojoxebuzelibi.pdfIn PDF document text
    • https://workinhotel.com/upload/fckfile/68286995880.pdfIn PDF document text
    • http://nensi.si/upload/file/gizafamivatimafowinen.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce8323ea1a---48874659133.pdfIn PDF document text
    • https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/pp1op2vb6vskn41chfdccjgvl6/99823855227.pdfIn PDF document text
    • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16081b1eacc383---xezezatugokusaxodidoreke.pdfIn PDF document text
    • https://topinsolventa.ro/userfiles/file/28742097998.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/taxivuxisiwonip.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/4207624772d54bb918af05a88fea6d94/lozotobazewoji.pdfIn PDF document text
    • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/701b17496cc2ed1e6534e32798ba2636/nigutuwaz.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080f3d516e75---netivifibudegofo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=medieval+music+composersPDF 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_off000131e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131E6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000149f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149F8 19744 bytes
SHA-256: 2481b18b19d922b141e1bdf2c538dfac8e1f7dcdb01035a30f44c6439376fd37
font_02_sfnt_off00017b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17B3F 10632 bytes
SHA-256: 6d6e66f7a6e99ef88cd75ca9803127ad440231d4dae08aefe69a7132f18bdd98