Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fcc47d0745f3f43…

MALICIOUS

PDF

80.4 KB Created: 2021-07-07 13:52:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 33c89c2c73ed83962bd76ef1a7415442 SHA-1: 1e5347f40a2c6d935b943b9d5da1a50a631e7f64 SHA-256: 7fcc47d0745f3f438a674b2f9f35aa0d557b05a4dd1a769fb35349768495c4b3
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains a link farm with numerous URLs pointing to compromised CMS uploads and disposable hosting, likely intended to redirect users to malicious content. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to lure users to external sites, potentially for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6621

Heuristics 5

  • 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
  • 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 http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160789770d37b0---gamudimozabidimu.pdf In PDF document text
    • https://nasroglobal.com/userfiles/file/13557479897.pdfIn PDF document text
    • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/qb1uksvql4ml75c654mbrppca0/vabinigesediteboxu.pdfIn PDF document text
    • http://novussiteyonetimi.com/uploads/file/kuwamukir.pdfIn PDF document text
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8110f11b7---sovuzokaramolal.pdfIn PDF document text
    • https://unosms.us/userfiles/file/xobep.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a1141cccea2---gesozakomedek.pdfIn PDF document text
    • https://eobliecky.sk/userfiles/file/77222712233.pdfIn PDF document text
    • http://jucal.es/images/file/98648720006.pdfIn PDF document text
    • http://digitalpolicycouncil.com/imagenes/file/juzobeni.pdfIn PDF document text
    • http://mosvag.ru/img/lib/file/patiji.pdfIn PDF document text
    • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a07ab9354b2---52766117724.pdfIn PDF document text
    • http://startmatbaa.com/userfiles/file/61011453945.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/61167ccdb52c94ac5dffdaf43d6deb0a/samuluwufaxesadefov.pdfIn PDF document text
    • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/3353bc223b4e23539bb3f8cb0913280a/94608753025.pdfIn PDF document text
    • https://pensionatiitalianiinportogallo.it/wp-content/plugins/super-forms/uploads/php/files/b1f66a99815d7a60773e047ee812d95d/modevatopiwate.pdfIn PDF document text
    • http://dianacb.cz/userfiles/file/95150195033.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160c29231b4620---79013914350.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab994b39f8f---83051471112.pdfIn PDF document text
    • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160aa0bf8f4025---kunuletemetesapipimitel.pdfIn PDF document text
    • http://nuraski.pl/wsg/userfiles/rorekesofisirukajirufu.pdfIn PDF document text
    • https://tractorpulling-emmeloord.nl/upload/file/81141848714.pdfIn PDF document text
    • https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/a0513342c9daee2de681ef02c1733da7/vazivolorilukud.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=case+fatality+rate+ebolaPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11696 17216 bytes
SHA-256: af76df3d4c0fceccf9fe93170ca7c8843712bb40ca6ab136238ae547139222fd

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