Malicious PDF — malware analysis report

Static analysis result for SHA-256 29d77d46dc1eb21b…

MALICIOUS

PDF

75.1 KB Created: 2021-06-21 05:57:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: f1bc34bb01152f0e7bf0ebb6ce8c927f SHA-1: 161727f1d70365f89fde073a565238bc1a8b9c41 SHA-256: 29d77d46dc1eb21b0a3125d578b29203f7943e39264a11eaabc0fe7adeaa296f
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF is detected as malicious by ML classifiers and ClamAV, indicating it is likely a phishing or trojan delivery mechanism. The document presents itself as a football play call sheet to entice users to download it, which is a common social engineering tactic. The embedded URLs point to compromised CMS upload directories, suggesting the file is part of a link farm designed to distribute malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://unique.global/wp-content/plugins/super-forms/uploads/php/files/b94448513791abc3fe26e6c6f4d8e3f7/97542332206.pdf In PDF document text
    • http://globaltruthmediagroup.com/clients/a/aa/aa8380eac451876ae6ab993bf3a720d6/File/178461576.pdfIn PDF document text
    • http://bem-sa.com/img/file/midusididozerevov.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff3ed30dd2---muxaxasirufat.pdfIn PDF document text
    • https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/87camhh7f5a4ss2i47jck53e9j/83941239322.pdfIn PDF document text
    • https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/iqtc4uc4fk8igsk9ogajp2a30h/59872188135.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160adef593abb6---22493270833.pdfIn PDF document text
    • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a050618263---91680010294.pdfIn PDF document text
    • http://www.allatpatikapecs.hu/images/file/tokezojububuzeped.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/tjqvrhl6pkc3ro9l1koccc9u76/90623293860.pdfIn PDF document text
    • http://yorktownhs1987.com/clients/57482/File/81046677268.pdfIn PDF document text
    • https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/01f18330167388cfbce7e2bf25183444/gitajupufut.pdfIn PDF document text
    • http://b-solutions.net/userfiles/file/kebotametexuwur.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c59405345b3---34664750851.pdfIn PDF document text
    • http://archi1919.com/smlclub-files/file/69909927466.pdfIn PDF document text
    • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb60a13750d---vadobigewiwigemon.pdfIn PDF document text
    • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb7d41e197---29888975085.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=football+play+call+sheet+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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e90a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE90A 5344 bytes
SHA-256: 060b14de2ef48a3d8790d634d73ef70127856020eb01762c30b350176e295627
font_01_sfnt_off0000fb3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB3D 10604 bytes
SHA-256: cf65685af582d3c0a2ad66a7b6c9f48efc5cf585f74ff8c7f2470249ee330679