Malicious PDF — malware analysis report

Static analysis result for SHA-256 42f284893a393c4d…

MALICIOUS

PDF

78.5 KB Created: 2021-07-16 11:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 364aca78c39305dec020bb9769614ba4 SHA-1: 1a7c62ab141fe1b7e2385e10da2743702323637a SHA-256: 42f284893a393c4db20d30a8f58f3a547b05d2d67915de0420f0b1dc70fa18b2
76 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URI pointing to a Google feed proxy, which is flagged as suspicious by the ML classifier. While the URL itself is marked as benign, its presence in a suspicious PDF suggests a potential phishing or redirection attempt. No scripts were extracted, and the document body was unreadable, limiting further analysis of the exact intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6556

Heuristics 4

  • 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/jEScUJLm1bs/square?utm_term=medicare+general+information+eligibility+and+entitlement+manual PDF link annotation
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ec794aad1bf7105ccad11a/1626110282189/ximagavexilefuwo.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e812497be683581ce4940e/1625821769602/two_sides_of_a_triangle_are_12_cm_and_14_cm_the_perimeter_of_the_triangle_is_36_cm_what_is_the_third_side.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec8b8720781e4bb11cc4be/1626114951424/isaimini_dubbed_movies_2019_download.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_off0000d2c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C5 10996 bytes
SHA-256: dfc2443fbe2b9ac4accc41c8ee5b69f6c5c9ed71c0e2ac27d0e628b551221bbf
font_01_sfnt_off0000ec17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC17 16168 bytes
SHA-256: 564f35e51166f774d987cc00f5f79ce27fbba644ec73ca46ef0fa3af34ff1c81
font_02_sfnt_off000115e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115E1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.