Malicious PDF — malware analysis report

Static analysis result for SHA-256 10932afb574980a0…

MALICIOUS

PDF

39.7 KB Created: 2021-06-20 21:53:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3459afd41e4d25ec2b1d8758fda3ca08 SHA-1: 929e56baa2b83b3eb55442169f58acb59b40c87f SHA-256: 10932afb574980a091581a6018563e311edf9f736cf114ae8da1662434b4e369
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as a phishing lure, likely designed to trick users into clicking on embedded links. The document contains numerous links pointing to potentially compromised websites and disposable hosting, suggesting an attempt to distribute malicious content or redirect users to phishing pages. The presence of a link farm and the use of a screenshot lure are common tactics in phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8359

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 39 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160adcdb149d38---ziwalesozubabugaw.pdf In PDF document text
    • http://allprintusa.com/admin/images/file/69580740836.pdfIn PDF document text
    • https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/31020079627.pdfIn PDF document text
    • http://duonglaohanoi.com/userfiles/file/fugesisedegup.pdfIn PDF document text
    • http://beloezoloto.ru/userfiles/file/nelizolapipoz.pdfIn PDF document text
    • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608ba21fd9ef0---69214888121.pdfIn PDF document text
    • https://istanajp2.com/contents//files/14766092329.pdfIn PDF document text
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/44ade2cb8a5b3fadd4e383766ec6b108/92844620087.pdfIn PDF document text
    • https://alshaabcoop.com/userfiles/file/dikalemugegar.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608ef81759c54---55376053180.pdfIn PDF document text
    • http://palyavalaszto.hu/teszt/upload/file/3959293493.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff9716ec25---41680232975.pdfIn PDF document text
    • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/4bbb9bdb73b458ed449e2acd38664bbf/75465888975.pdfIn PDF document text
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083dc0a68fcf---54362138891.pdfIn PDF document text
    • http://ck-tct.ru/userfiles/file/82796985327.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/2457b4c226a71fd5606b25404d64b34a/38310815099.pdfIn PDF document text
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/24fe3b6b8931c05f681898092e07563b/65838454884.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=ldoe+free+coinsPDF link annotation

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