Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ea01dd09b5168b…

MALICIOUS

PDF

78.2 KB Created: 2021-07-15 19:24:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 7d53572f4a3a659f39fcbba70f75704f SHA-1: ffd07f0d66ada4fcf81436e659fa2f16277338e3 SHA-256: f2ea01dd09b5168b08649d5283f52c018528565e9fe64c5521227f8841cbbc89
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and an ML classifier, indicating it is likely a phishing attempt. The PDF contains embedded URLs that are likely used to redirect the user to a malicious site. No scripts were extracted from this sample, but the presence of embedded URLs and the overall detection suggest a phishing attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6166

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/UZrB20b2Dcg/square?utm_term=portion+out+crossword+clue
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f05f1bb0ec6d06f7fc91f4/1626365724190/bring_me_up_sally.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f0078b0d8d0805bdb59a08/1626343307071/cannot_view.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7fc324261ba79806246d9/1625816114614/lotezebi.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8d520cb474813b85bdb21/1625871648109/illinois_property_tax_rate.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_off0000d1e7.bin
8b67337d186fc00baeb793e4433710825498cf0987b3e5ece7bb3ac9fb28ebc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E7 10388 bytes
font_01_sfnt_off0000e993.bin
353f5ecdd5f304318288e9d1ee552f310818497db95720523c39a21bbe08ca62		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE993 16692 bytes
font_02_sfnt_off00011504.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11504 16792 bytes

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