Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a848072fe6e92da…

MALICIOUS

PDF

89.3 KB Created: 2021-07-15 18:06:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 121545cfe2baab83371ef9089394d1b7 SHA-1: ace6aa04ae03ffe86d37cc329f6245ddbc140dd2 SHA-256: 5a848072fe6e92dadc998c67e038be4623e209b7e2633d43c11b3d4f62bc2a5d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains embedded URLs that are likely intended to redirect users to phishing sites. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to exploit user interaction for malicious purposes, likely related to phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5959

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/~3/0YvHz_IItD0/square?utm_term=fluid+layout+css
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e77f841f34c21d1885f3f6/1625784196291/wipadalimexonogopopanere.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee629ab27e5958d591a428/1626235546726/annual_leave_calculator_excel_spreadsheet.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e842eb437e4b05f971e16b/1625834219277/satasodomej.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee7b3f7dee9f188f7bf790/1626241855344/30687927801.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_off0000fae9.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE9 16792 bytes
font_01_sfnt_off000112fb.bin
6bd17cc68aa8a09e2b4c1ba5bd2c0a96eab0aae744aa6b3eb23f6ae9ba597ef9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112FB 18068 bytes
font_02_sfnt_off000142d2.bin
3b6330c97b2f2f902a247fc5ee429aa9ed14d0d30d4cc7dd7ccef613842d8c70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x142D2 10216 bytes

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