Malicious PDF — malware analysis report

Static analysis result for SHA-256 206905cc52f87760…

MALICIOUS

PDF

83.3 KB Created: 2021-02-28 10:44:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 093ff415708c15fdee72c2030b8dfebb SHA-1: b60e38285d31ab59ed545b6bfb685106e2ee11d4 SHA-256: 206905cc52f877603873550a63f89a2d0e34290c127d8045a11cc8fdc4b629cd
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as malicious phishing content. The embedded URL 'https://leonvi.ru/123?utm_term=catch+me+if+you+can+2002+full+movie+online+free' suggests a lure to a fake movie streaming site. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/123?utm_term=catch+me+if+you+can+2002+full+movie+online+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401694/normal_6019f319f1338.pdfIn PDF document text
    • http://volavajowu.22web.org/shark_navigator_vacuum_parts_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/xanodujijefu/hhjaWLr/25382307509.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470385/normal_5ff67863017ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465144/normal_6029dfb2959f0.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/fufikunaxisexadi.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvonusebex/jdnhfTl/sanemivuwutili.pdfIn PDF document text
    • http://nakomajuvedina.iblogger.org/17689412311.pdfIn PDF document text
    • http://golixudib.mypressonline.com/zinedutativutonurobosasuf.pdfIn PDF document text
    • http://fakixigulidol.mywebcommunity.org/40512758531.pdfIn PDF document text
    • https://tinabatof.weebly.com/uploads/1/3/0/7/130776088/1b9c6fee9f9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lapetagalelan.myartsonline.com/what_is_brainstorming_in_reading_and_writing.pdfIn PDF document text
    • http://ferodokibaw.epizy.com/23555619671.pdfIn PDF document text
    • http://wikusonusi.rf.gd/stock_inventory_excel_template.pdfIn PDF document text
    • http://zekovulelopur.epizy.com/capitalization_practice.pdfIn PDF document text
    • http://puzexexaniledow.epizy.com/30821666632.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001082d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1082D 5284 bytes
SHA-256: fc388f69db4e9f93b58bb911ea7b49afe3978359ed91344c96c739fa43f16e7b
font_01_sfnt_off00011a0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A0A 11108 bytes
SHA-256: 05453c7e82ea6850681ad672c5db9801c587d7b57c552ef8d3b3efdb6446d561

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