Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b0cf5bd639cad4e…

MALICIOUS

PDF

93.0 KB Created: 2021-02-15 05:05:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 27d3e03b4af9b5ccfff5355efbd4eee0 SHA-1: 69e896e6348694dc9039b699976449e90c220025 SHA-256: 0b0cf5bd639cad4ed004b9294605346bd17454a716fc5f4ba3691c3199aa54e0
126 Risk Score

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://baarspo.ru/wb?keyword=lavadora%20brastemp%2011kg%20bwk11%20manual PDF link annotation
    • http://redtea.space/jifoxefzljq.pdfIn PDF document text
    • http://creditreportusa.info/ultimate_halloween_word_search_answersyk2un.pdfIn PDF document text
    • http://adminhalil.com/27637784909jhiu.pdfIn PDF document text
    • http://dvigatel.guru/microsoft_cortana_apk587pt.pdfIn PDF document text
    • http://interior.estate/kisabusuremetopirfi8ez.pdfIn PDF document text
    • https://cdn.sqhk.co/leluforeref/bjcz3Jy/luwenoderodu.pdfIn PDF document text
    • http://titanovyi-filtr.ru/fujivexozefojefekotenarnubiq.pdfIn PDF document text
    • http://lalat.space/tuxiwegevajpccq0.pdfIn PDF document text
    • http://the-english-temple.com/16994182935e6cxs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491450/normal_601d809a4114c.pdfIn PDF document text
    • https://kuvezuwuziteb.weebly.com/uploads/1/3/4/3/134388010/336999.pdfIn PDF document text
    • http://life-news.tech/retrieve_deleted_text_messages_android_freeo7g4u.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gapivegek/free_tri_fold_brochure_templates_for_publisher.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/92386789174.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/53711488658.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_off00012768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12768 5628 bytes
SHA-256: 66a7bec7bee258a9983e81193488a1892f7e4bd2d93bb7f92f395133ea40308b
font_01_sfnt_off00013a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A8D 14632 bytes
SHA-256: c2433700c6df1cf9f06f6a11f6b2b45f1ff1637611a469eab5aea385d0678124