Malicious PDF — malware analysis report

Static analysis result for SHA-256 beeb0645204b9c8d…

MALICIOUS

PDF

74.7 KB Created: 2021-02-19 17:13:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5fbe88f2c0296d670848ba27d7ae5b8e SHA-1: 1eb94933af41c93bf07a7e20fc147a7e6519a533 SHA-256: beeb0645204b9c8dd1aa5e9d85f481054c297690c830714ebfa1be5f41289a12
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • 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://maypoin.ru/wix?keyword=pleasantville+worksheet+answers PDF link annotation
    • http://top-salez.site/warozekejimowitewfkrr1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409123/normal_602596763ac38.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/js6Liid/graph_paper_racing_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458633/normal_6010ea91778e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393188/normal_5fd335ee37f4e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373776/normal_5ff3e928d48ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447089/normal_6009b2f5a7e67.pdfIn PDF document text
    • http://ig-mediateam.net/juno_script21tai.pdfIn PDF document text
    • https://vokuduvalabi.weebly.com/uploads/1/3/4/5/134502282/jamenukizup.pdfIn PDF document text
    • http://mon-cmso.best/229924315185vwbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420020/normal_600d789584cf9.pdfIn PDF document text
    • https://nonafinawajag.weebly.com/uploads/1/3/4/3/134331790/kemebiwela-kosenuvit-zalaji.pdfIn PDF document text
    • https://gofadoden.weebly.com/uploads/1/3/4/6/134615513/divikawuduwofum-ridizoriri-bitivoxide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://riwexakax.epizy.com/47348248164.pdfIn PDF document text
    • http://xixakoju.rf.gd/cashew_nut_health_benefits.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_off0000ea12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA12 4992 bytes
SHA-256: 8c070aab19963f5acd0760f42cfc53cf8d841614d48b5a64cea5cfb2d8b61cb1
font_01_sfnt_off0000fb19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB19 10404 bytes
SHA-256: 9613d05eb859f71afd0650af8dd1743b133412e4adf16bf694134ca761f89da0