Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d30a410bb63937a…

MALICIOUS

PDF

75.3 KB Created: 2021-02-07 18:07:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 17e2999603559d5649fac247b8aa41fc SHA-1: 695c7142e33e5ee1febd00fe737258ff08e0a909 SHA-256: 6d30a410bb63937a49f8f721ae2315dcad5a56f8d7da4d6426250d77b5736778
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/aws?utm_term=yuan+shao+guide+three+kingdoms PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374953/normal_5fc9f72108cd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378393/normal_5fe9fa8dd7c31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450156/normal_600ed9fa84099.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412607/normal_5ffd4852711f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503279/normal_5fd62f133ac05.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502336/normal_5fee4d93f23b0.pdfIn PDF document text
    • http://cmb-eco.com/pubojofikis6k6.pdfIn PDF document text
    • http://copyrighytsupport.com/dependent_prepositions_worksheetcosvl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369774/normal_5fc7fedc724b8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369905/normal_5ffd6be9ccd11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497646/normal_6013d85f2f03d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387929/normal_60168194f3e17.pdfIn PDF document text
    • http://idealslim-ordina.site/pujizivegilosujanofunujudbi8vy.pdfIn PDF document text
    • http://supermagazforsale1.xyz/tulurisagiberilexowixetvqpj.pdfIn PDF document text
    • http://feyakast.online/jakodutukuzonukopexaxagudx1ghp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000eb58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB58 5232 bytes
SHA-256: 9f47e7a5eeda18cb8e3d18b6bf0be5db5ff06cc2dc797ae4c12d482a5f1bb8e7
font_01_sfnt_off0000fcfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCFC 10360 bytes
SHA-256: 0140c4e41a99bb8ecb8eb0ff47ad54c6c2bd2303fdcfe4c934285120ef0fe630