Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf962e882c3efeb5…

MALICIOUS

PDF

42.4 KB Created: 2020-11-04 07:17:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 2a34c99ad2e2f3107d391fccdeb70596 SHA-1: c195c259f4a5c16cc3cc555237e710698e44dbe5 SHA-256: bf962e882c3efeb52326b614142f05d2324e3b08d14b8242f6f63585621267f1
142 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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
  • 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://cctraff.ru/aws?keyword=great+wolf+lodge+niagara+cancellation+policy In PDF document text
    • https://finivoxub.weebly.com/uploads/1/3/4/3/134387593/pumakufogol.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/a1d0b0c.pdfIn PDF document text
    • https://bilewazivabo.weebly.com/uploads/1/3/2/8/132816117/mifegudilevato.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/zuvefusu_tewojawowebav.pdfIn PDF document text
    • https://gedaxafi.weebly.com/uploads/1/3/4/3/134340736/gatasagowereli_tidurija_punupeviwudupe_midifapi.pdfIn PDF document text
    • https://neburaguvud.weebly.com/uploads/1/3/4/4/134477844/pitivinebikaraw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bb723e1-d4b7-4adf-9810-e996cabc059e/kemim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02dff953-1fca-4d99-846e-ffe53b7f5207/16244242927.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50273c2d-da18-4f36-a686-eccc21b5800e/fantasy_age_campaign_builders_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73d52dcf-9153-4b65-aabd-4412042d9128/en_los_zapatos_de_valeria.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_off00006439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6439 5372 bytes
SHA-256: 7a719f94c9a68215a01e416e2c138d7bec896988db8cc96777fb2f0cf2211e57
font_01_sfnt_off000076af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76AF 11380 bytes
SHA-256: b192db2bc862b07137721c2b7c31c50d785f1ae4cc66600f30979fa3056acdae