Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9caed1e5ea6abb2…

MALICIOUS

PDF

71.6 KB Created: 2021-02-06 17:36:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fe9f72afdd66e383022373c5d6e43e81 SHA-1: 2003bf54b009d92bf17774281c159f8a1a99e370 SHA-256: d9caed1e5ea6abb2724faeb3d5f86626e05c8a6899a8a01e36bf84a6ba642167
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/aws?utm_term=argonautika+play+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4404488/normal_5ffc2b8b6de04.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369179/normal_60084762982b7.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/MXyRgfM/87074910579.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448347/normal_5fedcad2b5ad4.pdfIn PDF document text
    • http://felidefewipikig.22web.org/rib_callus_formation_time.pdfIn PDF document text
    • https://cdn.sqhk.co/kajurineg/ieMpha0/warrior_notes_tv_app.pdfIn PDF document text
    • https://cdn.sqhk.co/tisumusef/gfEu9ys/wozuriwasakuzupazupotusu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fekamenuzexogam.epizy.com/35733160849.pdfIn PDF document text
    • http://rafotafu.epizy.com/english_hit_album_songs_free.pdfIn PDF document text
    • http://kudurefusi.epizy.com/arslan_senki_op_1.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/webovixe.pdfIn PDF document text
    • http://gajovab.epizy.com/22543144492.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/60879397086.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/armageddon_movie_in_tamil_dubbed.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/tiwixamidizowezode.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_off0000dbd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD8 5184 bytes
SHA-256: 1a2587e886f575974b198bf7e2b12bca19cb48b6668b95ced51b485e2a68b2f5
font_01_sfnt_off0000ed9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED9F 10640 bytes
SHA-256: 08f781e7b8c24ea0060ea52eeef788997d2398d56449bb6a7c1c12b990029c27