Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa1622463fe696a7…

MALICIOUS

PDF

58.6 KB Created: 2021-10-05 02:23:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: ea4161f1c338af06fcd0d5cc45a9fb77 SHA-1: be2f8c9a3761cbfb1ae110c23040ddc5242ce5e6 SHA-256: aa1622463fe696a7353da59c0bcc3412c92b005e00c6281909c5fda5d7490713
124 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable domains, indicating a link farm designed to redirect users. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a malicious intent, likely phishing or malware delivery through these links.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4143

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://phanvienphianam.com/uploads/userfiles/file/gekikagulijadato.pdf In PDF document text
    • https://fundacionamigosdelmarcaribe.ong/ckfinder/userfiles/files/zegivojarovegokuxe.pdfIn PDF document text
    • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/16154288d1d6ae---tabubokuzasevarunax.pdfIn PDF document text
    • https://mimpishio2.com/contents/files/webaxaripusajeziduvezoba.pdfIn PDF document text
    • http://usaoxin.com/userfiles/2021-9/file/xosizunusisopebujoxe.pdfIn PDF document text
    • http://rsport.eu/yonexshop/static/file/sikujolatezatagakofe.pdfIn PDF document text
    • http://fioredda.com/userfiles/files/lifuxipelivufak.pdfIn PDF document text
    • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613880868c4f7---kafabimali.pdfIn PDF document text
    • https://hagakure.by/upload/editor/files/karevofozalufajigunudoro.pdfIn PDF document text
    • http://massvt.sk/editor_uploads/system/files/95255904061.pdfIn PDF document text
    • http://sentidoseg.com/resources/original/file/talekud.pdfIn PDF document text
    • http://area100impianti.it/userfiles/files/90689675705.pdfIn PDF document text
    • http://travelcenterpuntos.com/campannas/file/78149458843.pdfIn PDF document text
    • http://smcertificationservices.com/userfiles/files/51738208080.pdfIn PDF document text
    • https://forssah.co/userfiles/file/23140178073.pdfIn PDF document text
    • http://asvpp.fr/pdf/62871764947.pdfIn PDF document text
    • http://www.annaleehuber.com/content_files/file/76041001650.pdfIn PDF document text
    • http://moscowballet.ru/userfiles/file/27455694948.pdfIn PDF document text
    • http://holzbau-napetschnig.at/xeroguzonatutamupinife.pdfIn PDF document text
    • http://fqcycpa.com/jingkelun/userfiles/files/20210902174929.pdfIn PDF document text
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/db45f08843761f636ed8bd1be923a7dd/78018397829.pdfIn PDF document text
    • http://studiogaleazzo.eu/userfiles/files/nixolinav.pdfIn PDF document text
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615b87d713177---gexadanamiparixadumu.pdfIn PDF document text
    • https://nhuadailoan.vn/upload/userfiles/files/rubugusibomuwafunug.pdfIn PDF document text
    • http://tischlerei-schlusche.de/sites/default/files/file/rijijaxamuwusinakolemanid.pdfIn PDF document text
    • https://www.alapan.org/fckimages/file/nawexotufimaji.pdfIn PDF document text
    • http://alacarte-husum.de/userfiles/file/47794645094.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+print+one+pdf+on+multiple+pagesPDF link annotation

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