Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d0ab0c93cc4807f…

MALICIOUS

PDF

67.6 KB Created: 2021-01-08 16:20:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ad7e7b1110f00ddd04d2a2b8a3ad268 SHA-1: 6daf1f4cca971ff1ee6d885c9614b05d1ce1e305 SHA-256: 3d0ab0c93cc4807f67af78deb8ec969f5c193b353eada50ba2188eb69c2f05bd
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The heuristic firings indicate it's a malicious PDF designed to redirect users to potentially harmful websites. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of malicious intent, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9035

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafftec.ru/aws?utm_term=template+ppt+keren+2017+gratis
    • https://xukoxaxap.weebly.com/uploads/1/3/4/7/134748194/6785.pdf
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/texorabaseb.pdf
    • https://larulesa.weebly.com/uploads/1/3/4/7/134717423/kumeronabisafib.pdf
    • https://xozilawowoxov.weebly.com/uploads/1/3/4/7/134704750/1072676.pdf
    • https://dimazupaw.weebly.com/uploads/1/3/2/8/132814154/digesegefimovem.pdf
    • https://xidogofu.weebly.com/uploads/1/3/4/3/134307260/tafidokumepewoluf.pdf
    • https://vebunigujop.weebly.com/uploads/1/3/4/3/134367951/nafasirivududiteko.pdf
    • https://static.s123-cdn-static.com/uploads/4413866/normal_5fc92b3bc4451.pdf
    • https://lozulijulejibog.weebly.com/uploads/1/3/1/8/131857057/de68f52578.pdf
    • https://zovakobazala.weebly.com/uploads/1/3/1/4/131456363/aa54f.pdf
    • https://zunovuxosuseso.weebly.com/uploads/1/3/4/4/134497136/6468145.pdf
    • https://kotonimurapuva.weebly.com/uploads/1/3/4/4/134440920/tumedonele_zovexufu.pdf
    • https://toxejezewigi.weebly.com/uploads/1/3/4/5/134513259/1a859b.pdf
    • https://uploads.strikinglycdn.com/files/585626ea-cf8a-45e3-a25e-555303e830db/97501190305.pdf
    • https://uploads.strikinglycdn.com/files/2d4e412d-f4ff-4177-86dd-f7ea51f6ce87/92637674222.pdf

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