Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff84803278564434…

MALICIOUS

PDF

69.5 KB Created: 2021-03-02 02:57:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7d2168b684b993c5fcd190bfa1ff6c8c SHA-1: a432dd481332c09c58acd8d16ccd6ac563c96871 SHA-256: ff84803278564434bad452b47cbae623a8e0d3a7e2f7629505f1c4230b04b745
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/wix?keyword=bwwm+tv+shows PDF link annotation
    • http://3bki.ru/lipajadozuwimebolezumanil2cug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479460/normal_601b2979ece12.pdfIn PDF document text
    • http://liwitesuzemumex.sportsontheweb.net/xemuletaselubabixile.pdfIn PDF document text
    • http://wowogobofomufu.mygamesonline.org/50304502328.pdfIn PDF document text
    • https://wowujisalot.weebly.com/uploads/1/3/4/3/134349860/bfb822ade6368c.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/xamapebonijos/50502467642.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/povuzosubo.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/how_to_clean_a_tecumseh_5hp_carburetor.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_off0000d6ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6CE 4788 bytes
SHA-256: c0ccbfbe94ada90afc5076dfb60190ada2fd8f936e22777e3177d35cbf4e0fad
font_01_sfnt_off0000e70e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE70E 10128 bytes
SHA-256: 0174fd2429c442bca3c88081a270e4f1e60ce9e23b3c1dade369511a7656ca9f

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