Malicious PDF — malware analysis report

Static analysis result for SHA-256 0751d2f43e736939…

MALICIOUS

PDF

72.2 KB Created: 2021-02-21 07:30:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 02d74fe561ac61a09addf9717022a934 SHA-1: d16749c47dcf1c7d36209c5263e51df1b971d61b SHA-256: 0751d2f43e7369394e0424eecb3606e453c2db62c9ef87634aeb34e66ff969d7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/123?utm_term=graco+comfy+cruiser+travel+system+with+snugride+30+reviews PDF link annotation
    • http://pc-remont.website/94055226542u339x.pdfIn PDF document text
    • https://cdn.sqhk.co/xeposetuge/djapgjs/gazedapegatagen.pdfIn PDF document text
    • https://cdn.sqhk.co/faresawuf/nlNNthc/94741270482.pdfIn PDF document text
    • https://cdn.sqhk.co/novitovikor/hiR4Ugd/55299676512.pdfIn PDF document text
    • https://cdn.sqhk.co/sovixojer/H1bjhhd/the_chinese_university_of_hong_kong_qs_ranking.pdfIn PDF document text
    • http://mamajan.space/luzor7kzz5.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/2vThjdU/folekurazilaluxuvebofu.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/iaZgdhc/icon_clash_nike_sweats.pdfIn PDF document text
    • https://cdn.sqhk.co/dubutemaruxu/cg7ig6y/zemibuvevujofenafi.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/lorugipopuxe/64388502688.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/70856564271.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/bubble_shooter_genies_mod_apk_revdl.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/corporate_accounting_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/78196185631.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/wodofobopejeroji.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_off0000dbe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE6 6024 bytes
SHA-256: f114d2448e8f73e08b2c73019f5139189d290b32f99509bd5360dec506751d8e
font_01_sfnt_off0000f062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF062 10444 bytes
SHA-256: eebe73f9a66dece29a6e95b2ac107735c82f4c6ed86d7547db06d5710649c778