Malicious PDF — malware analysis report

Static analysis result for SHA-256 c80fd3abc345dc26…

MALICIOUS

PDF

84.1 KB Created: 2021-06-28 01:11:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a7f5d414d9538d7f16dfd423a056dd11 SHA-1: 729bbd42c103c60257995db0f80eae8dc54ac30a SHA-256: c80fd3abc345dc268ec7265ab9aa9eb822f110d582e0f000018bb0ca06d8f49c
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file is identified as malicious by ClamAV and contains numerous external URLs, many of which point to compromised CMS upload directories or disposable hosting. The heuristic firings indicate that the PDF is a link farm designed to redirect users to external sites, likely for phishing or malware distribution. No scripts were extracted, and the document body was unreadable, but the overall structure and URL patterns strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4833

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 https://nomylo.ru/uplcv?utm_term=house+of+cards+chapter+38
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/64a9j9cl9smoftq8qll8voh5tj/tikufanitibe.pdf
    • http://palami.by/images/file/55848328123.pdf
    • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607683d824348---pefaxi.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc41b98e9cb---budegigapotabuxudi.pdf
    • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/37b023ed48beb3d19b0e6ea816d9ed5f/4724152536.pdf
    • https://acgroupenterprise.com/userfiles/file/79804754665.pdf
    • http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607927c3b80cc---mowekumawevutuwij.pdf
    • https://palcev.ru/userfiles/file/niroliz.pdf
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160763c7486e1c---77012555405.pdf
    • https://rozgarnetwork.com/ckfinder/userfiles/files/5583915396.pdf
    • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/1aa728666dcfa9a52283c532c0082290/masumusesipunoleluku.pdf
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160aefe59824bc---pavajeverokozonixigatesuj.pdf
    • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/176fa99d35a862e65cf2228e902fdcd2/22762949689.pdf
    • http://project-lovcen.me/userfiles/file/lapag.pdf
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079f827d59e3---xepisezusenetewog.pdf
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b983e4b866---zazopinexa.pdf
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dec2acd1d1---86065177695.pdf
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acbc6a0c7e6---kidixeripejezodipetela.pdf
    • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090f33f0ec83---22483511196.pdf
    • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/7c0279a2428d1f40643020d4c257534f/83482936982.pdf
    • https://altbuket.ru/files/89439229659.pdf
    • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/3de3c5d08da1ef16ab69142d882d108e/37041051322.pdf
    • https://kodcomputers.ro/2664/uploads/vakar.pdf
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/80d931dc674cb22679206d2fc99d785e/nisevuvifinudub.pdf

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