Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbb06d0be1823b98…

MALICIOUS

PDF

81.9 KB Created: 2021-07-13 07:51:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 610ca92f666f7b66bdf040a1887e1482 SHA-1: 07eb3f7c7a681c77609043e6e6150bfc2f864423 SHA-256: dbb06d0be1823b9847d518bb6647513fdafcabb8d791cb4306d4a8beac253aa0
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. The PDF contains embedded URLs that likely lead to malicious content or further stages of an attack. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit vulnerabilities or trick the user into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8896

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/cEZ-xJcQpFE/square?utm_term=counting+stars+sheet+music+pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ec72e2c8b0d544b6d5e88c/1626108642281/meaning_of_refraction_in_english.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ece125f84adf285beb381b/1626136870243/dopekekinilok.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e785304130bb3e8e25aec3/1625785648705/40087104184.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e88214f0c6d837eb1f761c/1625850388959/impact_of_human_capital_management_on_organizational_performance.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e8169751cb2a526cfecd64/1625822871254/pewulasifi.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60eca0247a6a1626764b43b1/1626120228711/how_to_get_an_owners_manual_for_a_car.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e90a3cdefa333328a99f6a/1625885244951/how_to_describe_rainfall_patterns.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_off0000dcbf.bin
59d47454bfa6c22e9fd06c9a404d85df1be3bf6cae05891d5bad33c919552b37		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCBF 17348 bytes
font_01_sfnt_off00010a12.bin
beef42a67bd6366692588dd134b7958c8b243bd3ec549966c0bdfd21dfc5bc5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A12 11152 bytes
font_02_sfnt_off000123d3.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123D3 16792 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.