Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9ff9fcc9ee4eff9…

MALICIOUS

PDF

72.3 KB Created: 2021-03-09 07:50:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c1ba4ef44dc3fa41be41c806d1b084cc SHA-1: 4e5b2785fef93dfe978e2a2b6adaa748f9d278ef SHA-256: f9ff9fcc9ee4eff9735f4ff12504821efbbecbe5a32fc661e0af0bd1ec50199e
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • 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.
  • 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://crophysi.ru/wix?keyword=fastlane+road+to+revenge+mod+apk+android+1 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4381539/normal_60467faf4468f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366044/normal_5ffbb106ecc16.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386606/normal_5ffc6b6ea2e3a.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/fjdhjjj/dominos_hours_on_saturday.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/dVibjgh/jaxutawexatiza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494417/normal_600ef5c602771.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492555/normal_60306a6336236.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375203/normal_5fc99b565ca83.pdfIn PDF document text
    • http://zewikeb.iblogger.org/seventh_generation_laundry_detergent_reviews_consumer_reports.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496592/normal_5ffa4ff5875bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496616/normal_602396fed2a64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370280/normal_6039ed08b5871.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408875/normal_5fcb59c0d00ca.pdfIn PDF document text
    • https://cdn.sqhk.co/xekixuzurim/igggd7v/72508306309.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/f35d543c-115f-420c-b9e0-730898db7d93/merchant_of_venice_sparknotes_translation.pdfIn PDF document text
    • http://nirepuxakidogu.rf.gd/windows_10_size.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40cb5b90-b2a1-46d0-bc5d-367314d76cb0/artemis_fowl_graphic_novel_series_order.pdfIn PDF document text
    • http://gotozowixefe.epizy.com/dadaravisikiper.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7e5cf9d-a3ea-45a0-800c-5ff87103fa2b/how_to_activate_mods_fallout_4_xbox_one.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfb653b8-3bca-4d87-a15e-81165e0fc9a5/photoshop_tutorials_for_beginners_videos_free_download.pdfIn PDF document text
    • http://rexalovujomorox.epizy.com/bukepekede.pdfIn PDF document text
    • http://torobedi.epizy.com/jajofataruboxu.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_off0000de86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE86 5408 bytes
SHA-256: e1e0c9e449244f2e12d8c4b608bc1995746027581e556df295b1acb870985106
font_01_sfnt_off0000f0e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E5 10216 bytes
SHA-256: df2bebb9b5599ab82019f6d8eebc4d4dcafbf0b329acef4a65092e8157a2a1bb