Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2fe9507ef4a2502…

MALICIOUS

PDF

94.8 KB Created: 2021-07-15 20:11:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0feef30f1ee6103e6b195163f089e65d SHA-1: 70bf077c6c0d8ac3c9432156be0c34fdbc4b5b47 SHA-256: d2fe9507ef4a25028a745fb0b67275632085fb87d2fbcff24cf9f30dd652cb38
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI that points to a URL, likely intended to redirect the user to a phishing site. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest malicious intent related to phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6209

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/qQn0o4eTdIQ/square?utm_term=broad+minded+in+a+sentence
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7a56c52059f1ec1e10794/1625793900883/59668680621.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec82d6dcef4a49b3aad53e/1626112726317/67428692351.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ede1a836d517042360cd96/1626202537204/ar_quiz_answers_for_harry_potter_and_the_order_of_the_phoenix.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60edaf1493ea6d7f6ef7932b/1626189588174/wixevisar.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec8f31e0ada229be57c41c/1626115889892/m_in_phonetic.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de4e.bin
73fb97d8556bd2b11c231288b4845d94f04a3386bb3dbc1b8ad172454439ac18		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE4E 10540 bytes
font_01_sfnt_off0000f64c.bin
68c8ad8f303380ac55a244dc5213efc890e7edee25e865b975ff22bb47fdb2c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF64C 15188 bytes
font_02_sfnt_off000124fe.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x124FE 16792 bytes
font_03_sfnt_off00013d10.bin
844c351493bff5c7a05acc2979107e0861658900085ab08bc5cad6198ee39a90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D10 18856 bytes

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