Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e57240efd09665e…

MALICIOUS

PDF

69.1 KB Created: 2021-02-10 14:59:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 95f7c0d6dc0fc347ae612bf9a733aef9 SHA-1: a0036f8ef18b7c2096dee4d5d4e57fd9f352ec4a SHA-256: 0e57240efd09665e2e343513aae91c020f3636b6e21cd4ca58c30bff547d7b5c
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • 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://baarspo.ru/123?utm_term=moon+easter+egg+bo3 PDF link annotation
    • http://cardioactiveufficiale.site/javascript_tutorial_for_beginners_with_examplessjdi1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481516/normal_5fd0593e0355c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425921/normal_5fea271bb7fd3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471992/normal_600624c1f423c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427273/normal_5feb2b9d57ffc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451047/normal_6011fd991a0aa.pdfIn PDF document text
    • https://fetatoba.weebly.com/uploads/1/3/4/6/134689412/voxadipako-wavusar-xesanupegerali-kesurajolegu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369660/normal_5fd7a9aa72863.pdfIn PDF document text
    • https://tupirusu.weebly.com/uploads/1/3/4/7/134702138/b20676742ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407314/normal_5fe489f0b959b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465396/normal_601cf6f56da0b.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/wanalovum/implosion_apk_full_version_1._2._12.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/delete_pages_adobe_reader_online.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/22794508072.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/reporting_goodwill_impairment_loss.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_off0000d2f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F6 5132 bytes
SHA-256: 4e888609457ce8a83be8892bdd8b47466ff09ced1d8b18a38cc1893860a0c910
font_01_sfnt_off0000e489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE489 10256 bytes
SHA-256: 65115fed515342b4b49a5dc7fe71bd57f2090ef917f206358f4311c83f8a565f

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