Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a2d063cfd724478…

MALICIOUS

PDF

92.6 KB Created: 2021-07-13 15:56:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 69a60b8c4357aabf90017335513b83aa SHA-1: d6b48121b284405bc445ba67a7f7ffd42e7a9d90 SHA-256: 0a2d063cfd72447830c8fa7c916759d1c17e3a93984dfa7c72c6e3290a854487
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of an external URI suggests an attempt to redirect the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8712

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://pistant.ru/square?utm_term=first+spacecraft+to+carry+a+human+into+space
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e7c74b8f757b1ac4508bf8/1625802571141/illustrator_square_rounded_corners.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e95ea6b630645a0ef928b8/1625906854585/movalaxale.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ed8cec840a1961e7b8467c/1626180844315/89770700771.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e76b26815bc24aaf154a4c/1625778982877/fimavi.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e93d0f8ce0e10532d38811/1625898255644/sixpence_none_the_richer.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e924dce6a58043b691c17d/1625892060727/jesus_jesus_jesus_there_is_no_other_name_by_frank_edward.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ece010fb5306426ec738ef/1626136592911/govavorasidaseliv.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_off00010a50.bin
bdbefc1b810629b2facabf9e33ea7518b60dcacd684986042acfee8e7f269fb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A50 16544 bytes
font_01_sfnt_off00013556.bin
48ab94ba92077c0b9cb520a0557201a7a3c014730334132cea565eea90338339		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13556 10892 bytes
font_02_sfnt_off00014e67.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14E67 16792 bytes

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