Malicious PDF — malware analysis report

Static analysis result for SHA-256 3025f4a064c18afa…

MALICIOUS

PDF

77.2 KB Created: 2021-07-12 23:12:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 8eef09342a242fd8b1c00701b3ac42b9 SHA-1: 33b7d511622954c886e002d94ab49fb394f9573b SHA-256: 3025f4a064c18afa8af5dd8286cf48bbc2454d219208c1fb966640a3ef67df42
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. The presence of a PDF_SEO_UTM_REDIRECTOR_LINK heuristic indicates the document attempts to redirect users to external content, likely for phishing or malware distribution. The embedded URL, while classified as benign in this context, is part of the redirection chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://feedproxy.google.com/~r/sq/ugae/~3/9xivtwLAy4k/square?utm_term=a+hand+in+the+bird PDF link annotation
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec8890700aa07a78956a7b/1626114192609/king_edward_of_wessex.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e809a757d2352c927e4ca5/1625819559729/download_ringtone_free_fire_mp3.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec84e4e64ce5371634ead6/1626113252841/definition_of_fusibility.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e89b944471185a9cdc55bd/1625856916323/42539931302.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e941762a6f785f58355ec4/1625899382661/cold_and_body_aches.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e7895aa431ed42d2f6ec67/1625786715049/the_tale_of_a_gumiho_kdrama_2020.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e88a2bc35fbf1ba6cbf32e/1625852459383/20339166691.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec9359e07849485499c4d3/1626116953968/92397625827.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec78654c0b954f9ea323c1/1626110053948/tenonusitewigofemim.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ec78cbef188817f7e050c4/1626110155314/marvel_cinematic_universe_watching_order.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e79208872c4c6263c089f3/1625788937450/galabanuxokef.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e8ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8EA 10132 bytes
SHA-256: 1e65b30a26b0bd93fa8a6e5ce0307666f046210ad8a9ea15c931b22b21442fb4
font_02_sfnt_off0000ff6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF6C 16020 bytes
SHA-256: 3b7d856c8f642d88c897ec18a9ef45887867dfe98e1410a7e328d4a3e91bd308

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