Malicious PDF — malware analysis report

Static analysis result for SHA-256 44a80cc2ac8a9db9…

MALICIOUS

PDF

56.8 KB Created: 2021-09-20 22:00:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 7080955b1a1519a8b027224b64751992 SHA-1: 8c5c03816aaa3a819942e33f42204f2651d1283c SHA-256: 44a80cc2ac8a9db90116ffe3679a06ebc4b57778afeefd7874544ff11258bd39
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised or disposable domains, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted, but the structure suggests it's intended to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6236

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://ketchas.ru/uplcv?utm_term=war+full+movie+online PDF link annotation
    • http://imoroz.by/upload/file/20497640408.pdfIn PDF document text
    • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/46f8369249d7a16ba37c193326ce27f9/71223576513.pdfIn PDF document text
    • http://mtt-association.fr/upload/file/julowupikurenorijad.pdfIn PDF document text
    • https://astoraccessories.com/uploads/ckfinder/files/67783399342.pdfIn PDF document text
    • https://istanajp2.com/contents/files/parepitutobozupokireseto.pdfIn PDF document text
    • http://krzysztofmalec.pl/gfx/fck/file/94933939719.pdfIn PDF document text
    • https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/tejumisemoxipilasiwusajad.pdfIn PDF document text
    • http://sgd42.ru/userfiles/file/vuzariritotapubi.pdfIn PDF document text
    • http://msslink.ru/userfiles/files/51216992961.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1612fcc382e42c---gitosumebijijajogipobenim.pdfIn PDF document text
    • http://arebiatours.com/uploads/files/lirabisupugabomotuxekili.pdfIn PDF document text
    • https://santa.my/images/users/00000000/files/duxuzovojomu.pdfIn PDF document text
    • http://divelife.kz/files/file/dujiganowabijupego.pdfIn PDF document text
    • https://movimientofamiliadejesus.com/images/uploaded/file/72956141816.pdfIn PDF document text
    • https://www.ftha.org/admin/ckfinder/userfiles/files/28313904523.pdfIn PDF document text
    • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/9768602680.pdfIn PDF document text
    • http://www.miyadenthai.com/image/upload/File/8458073229.pdfIn PDF document text
    • http://spielundlicht.de/content_provider/documents/files/geluduxaga.pdfIn PDF document text
    • http://kovofilm.cz/userfiles/file/joguxo.pdfIn PDF document text
    • http://facilitymanagementassociates.com/survey/userfiles/files/46483866036.pdfIn PDF document text
    • http://jd6618.com/jd6618/file/2021-9/file/LwpCms2021_09_14_11_43_54_5744.pdfIn PDF document text
    • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/magegi.pdfIn PDF document text
    • http://heninrealty.com/userfiles/files/82583823702.pdfIn PDF document text
    • http://www.520amis.com/upload/files/wusijenovumofu.pdfIn PDF document text
    • http://c-amc.com/upload/files/43505106639.pdfIn PDF document text

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