Malicious PDF — malware analysis report

Static analysis result for SHA-256 abd65ebd66516b9d…

MALICIOUS

PDF

80.2 KB Created: 2021-07-14 10:07:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 23a1cf9115b2d04f8304e71141fec97e SHA-1: 06b775205a8d25a6e2278b1cadf34d9c7cb714c0 SHA-256: abd65ebd66516b9ddc078bca4cbf54efee63f5c0e8e30ff7253de281b1a042c3
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is identified as malicious by ClamAV with a 'Pdf.Phishing.Trojan' signature. It contains an embedded URI pointing to 'https://drafthe.ru/square?utm_term=globalisation+and+the+indian+economy+pdf', which is a strong indicator of a phishing or malware distribution attempt. The PDF structure itself does not contain readable text, but the presence of the malicious URL is sufficient to infer the attack pattern.

Machine Learning

  • Nyx PDF Classifier clean score 0.1467

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://drafthe.ru/square?utm_term=globalisation+and+the+indian+economy+pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7d36e4d2175279d131ceb/1625805678258/neon_text_after_effects_template_free_download.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ed9018bc85f73bac29a2cb/1626181656244/18759860537.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d813.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD813 16792 bytes
font_01_sfnt_off0000f02a.bin
b48b8fc9cb804619ec08c6ff8f0e36d4a37de4f2f4b21cbf888dccf7904925cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF02A 11076 bytes
font_02_sfnt_off0001099c.bin
9d2136b3fa56b5db3762ae013a783c896b4281456692cb6788461212050941ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1099C 16768 bytes

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