Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c7fdf020d2bfda6…

MALICIOUS

PDF

70.4 KB Created: 2021-02-24 05:41:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 60ce4be84bfb97213def7ea394026b0c SHA-1: 8f9711c61d8720128e9366c634a1787944e2c7a5 SHA-256: 3c7fdf020d2bfda665c40889b22993bda768767c4c80abaf29345f20d344fd6c
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=the+giver+questions+and+answers+pdf In PDF document text
    • https://dufubixapitosig.weebly.com/uploads/1/3/4/5/134503348/9573681.pdfIn PDF document text
    • http://lnstagramverifiedbadge-form.com/613890998261wwsa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470962/normal_5ff7d8aee5be2.pdfIn PDF document text
    • http://girlsbeach.space/xewupenivojabexufewazifo6hba.pdfIn PDF document text
    • http://ch-redirect.icu/old_mans_war39qof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451039/normal_600e493ec612f.pdfIn PDF document text
    • http://steelsho1.club/16577385965zknr2.pdfIn PDF document text
    • https://gujavaluzosozu.weebly.com/uploads/1/3/4/0/134013303/parenakowi-puwak-kamifuze.pdfIn PDF document text
    • http://presentinsta.site/blender_uv_unwrap_tutorialaf4wj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409801/normal_6002eba4de0d1.pdfIn PDF document text
    • https://pegigisujojefuf.weebly.com/uploads/1/3/1/4/131413718/wugevebadejus-ligakobapabi-nekekape.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417222/normal_60298d19ab57d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495525/normal_60108e4362b5b.pdfIn PDF document text
    • http://adyga.site/zipumajazizefmcvak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465705/normal_5fcba5397c2d5.pdfIn PDF document text
    • http://3gusevshop.website/sport_of_kings_barber_shop_ellensburg74bc8.pdfIn PDF document text
    • http://characduwe.space/going_home_music_sheetufd5t.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/ruzaganog/pc_troubleshooting_beep_codes.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_off0000d627.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD627 5496 bytes
SHA-256: 332fcd13e9df7652bc0e3ede2cd6be64832fd15dbac092e164e2aad560203d8f
font_01_sfnt_off0000e8e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E3 10524 bytes
SHA-256: e3ebe0b4e734efae78e613787ab8190b9ad7e9f48d4815a33b31bb879ca85abe

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