Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b85a68146e836b5…

MALICIOUS

PDF

69.6 KB Created: 2021-04-06 11:57:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 06be22f13f9415df979e04ca5f512697 SHA-1: 02c8388d541b1479090407210acdee4644da5273 SHA-256: 3b85a68146e836b543e324ed47045761246d9d168b5f59b03d833f746813e671
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7471

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/aws?utm_term=hamilton+beach+xl+convection+oven+with+rotisserie+reviews PDF link annotation
    • http://sy0n.icu/ainda_te_amo_joo4hyog.pdfIn PDF document text
    • http://potuxoposutu.medianewsonline.com/plano_cercanias_madrid.pdfIn PDF document text
    • http://malespw.xyz/17640140694znz3v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428069/normal_6064af8886967.pdfIn PDF document text
    • http://help-business-media.com/furamixajakuranogigimowigrsaet.pdfIn PDF document text
    • http://woxijakuzadajew.getenjoyment.net/87453040176.pdfIn PDF document text
    • http://sunny-web.ru/karl_marx_capital_book59nk3.pdfIn PDF document text
    • http://bugiwuxad.medianewsonline.com/axis_bank_fd_rates_2020.pdfIn PDF document text
    • http://mebovedu.getenjoyment.net/koxolewozelutoxedaben.pdfIn PDF document text
    • http://ehaberdevlet.com/fapotuwekuboraruwibuxs8rz.pdfIn PDF document text
    • http://toluvubub.mygamesonline.org/21309137830.pdfIn PDF document text
    • http://it50save.info/bayonetta_chapter_15_guide1s9aa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462379/normal_5ffa6f7a80b8c.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bd94019-f4e1-49f8-9d75-14a23fa42bda/jomuzopotevofifa.pdfIn PDF document text
    • https://471876dd-1950-42f1-a4b7-18bccbaeda70.filesusr.com/ugd/5d8976_76db081cd75144e896a6bb889073a21f.pdf?index=trueIn PDF document text
    • https://1c684d3d-b1aa-4d58-8f8e-408f9cf37fac.filesusr.com/ugd/64d889_a1b5179029fd44b684051af724f90812.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7fac711-af56-4296-9c9d-6b9617f49cef/study_guide_for_bible_free.pdfIn PDF document text
    • https://404c0e03-56c4-4888-bb84-d9d32a71a3e4.filesusr.com/ugd/100e2e_55856e0b3b5c4421a063f16760a72f0f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/29dad46b-9bff-4e2d-94ad-179e58495667/gowutibesukorovavefili.pdfIn PDF document text