Malicious PDF — malware analysis report

Static analysis result for SHA-256 09e70b5f76a6acd3…

MALICIOUS

PDF

66.9 KB Created: 2021-02-21 03:47:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8206768b27b5cdc6afde3475d93d8b55 SHA-1: 64cc52ee404cdc47460362e030cb99105699f5bd SHA-256: 09e70b5f76a6acd348b15246207f907fc10daaaa49247dd2d3dc5165dbca1308
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://druttle.ru/wix?keyword=moodle+ins+camarles PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4368238/normal_5fee3e7c6124b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393179/normal_5fef5fbd2aaeb.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/jiRNRgj/68404184015.pdfIn PDF document text
    • https://cdn.sqhk.co/lewonuvaxu/ehegcrm/vunoxul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481170/normal_601535b74d506.pdfIn PDF document text
    • https://cdn.sqhk.co/libuzewis/icdggH5/tugugipik.pdfIn PDF document text
    • https://cdn.sqhk.co/duzoxibuf/88jf968/star_traders_frontiers_best_combat_ship.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/najubu/blippar_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/patilawasu/demand_collection_letter_template.pdfIn PDF document text
    • https://s3.amazonaws.com/gopifu/gaggia_brera_indicator_lights.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/gozobonilipesewerunipi.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/fapebapokedaredipak.pdfIn PDF document text
    • http://patabajisof.epizy.com/strona_bierna_angielski_exercises.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_off0000cac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAC3 5088 bytes
SHA-256: 1d9f15f049732d7fa5ff362cab2912af5e443d225a0adb114e35e45093767a99
font_01_sfnt_off0000dc03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC03 10352 bytes
SHA-256: 22bc082c0bd5b4e0807a852c9f592cb3f786d6e759f4868a8ff4d77980b49ebb