Malicious PDF — malware analysis report

Static analysis result for SHA-256 cce21bd9c332a176…

MALICIOUS

PDF

77.9 KB Created: 2020-11-17 10:21:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 595eb937fad1a0861cbc962743ea69c7 SHA-1: 0f81438f190c97ac8e1b4e698ef748f0c7dcd04b SHA-256: cce21bd9c332a1761a9a68d37c11129a5fdc3aae24e5d91c770a68949aeae69d
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffset.ru/123?utm_term=ralph+breaks+the+internet+full+movie+online+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368479/normal_5f8e2ee13aa41.pdfIn PDF document text
    • https://jufukakoxojopop.weebly.com/uploads/1/3/4/3/134317893/1cd16e26c3422.pdfIn PDF document text
    • https://luwovizebezew.weebly.com/uploads/1/3/4/4/134482442/senetasasovawijegi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487381/normal_5fb02eaf92c6d.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/ribowexulo/modes_of_discourse_rhetorical_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/world_of_warcraft_chronicle_volume_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68e91fed-100d-44b4-bfff-bf52441963da/the_escapist_free_download_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/denozovu.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/39489114304.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/39205918194.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0bc0f1b-7939-4910-b0c5-e176ba64902d/9782740742.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_off0000f2ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AB 5412 bytes
SHA-256: 617b0b868ee79492b2245c9774efdc047de6994bd0b3c8a55d1d7c397c0ffa85
font_01_sfnt_off000104ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104EA 11076 bytes
SHA-256: 740d3659fb283357f9aa1d57eb5a0c041d5fb46de6577217873ca687548bc075