Malicious PDF — malware analysis report

Static analysis result for SHA-256 d702716090d59e09…

MALICIOUS

PDF

67.3 KB Created: 2021-02-15 22:41:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 87ce22274f51b501de1247b3c33eeb77 SHA-1: c8ef282f365d56fed7c38bf66b33a2d53b7a3c19 SHA-256: d702716090d59e090ff062a83bb5cb4cc181fb32692558dc9d7d61a7de238fb2
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://baarspo.ru/123?utm_term=mind+control+yugioh+espa%25C3%25B1ol PDF link annotation
    • https://cdn.sqhk.co/gajerivab/dibbQhj/83559682623.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378155/normal_5fdc148165041.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501233/normal_5fdf111d793d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393637/normal_60142d177235d.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabalero/fQchjjg/36713711143.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413705/normal_6024a4ba99ce4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_6017bf8e38c74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367938/normal_6020c1f1849ef.pdfIn PDF document text
    • https://cdn.sqhk.co/kefexunas/haSNWgg/xojepujanilanukarevufak.pdfIn PDF document text
    • https://cdn.sqhk.co/daxozazon/jpje7Dp/carrom_disc_pool_hack_mod_game_download.pdfIn PDF document text
    • http://fruitnaturs.space/fixadudawozokofipedolulutf7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474723/normal_5fd10e06b19a8.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/gebukil/ozone_depletion_report_writing.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/bitdefender_antivirus_free_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/bombastic_brothers_mod_apk_unlimited_gems.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_off0000c797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC797 5652 bytes
SHA-256: 37b1d7b2114da6a6b7594e1dfdc06c88dc8ba2550901dd74e05c1d01c72e86e4
font_01_sfnt_off0000da9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA9D 10384 bytes
SHA-256: a8f0b25dd2528de799884745478adbaf7b32e2996cf757186e24bdd09317973f