Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c15034a18da60e3…

MALICIOUS

PDF

77.0 KB Created: 2021-07-17 13:18:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 9a05a843cf3101892d81f9f6acd61f2c SHA-1: 7bf091a6cd83535a856b6153dd48077686e0b843 SHA-256: 2c15034a18da60e343543f978598a0a28447e676d730cbd9c637271269f5701d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains embedded URLs, one of which is flagged as potentially malicious. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery. No scripts were extracted, but the presence of embedded URLs suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8972

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/eaN1Eb74jJI/square?utm_term=short+passages+for+grade+4
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee0fc984a0477e84a7e3e9/1626214345963/the_quotient_of_a_number_x_and_4_is_at_most_5.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ed96461374dd6a9a62e23c/1626183238209/gta_5_for_pc_download_torrent.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7c0f480504e0a776803b7/1625800948434/k_on_characters_mio.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f1f23e43f7b9065f70b26a/1626468927290/pivisigowego.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60efd2f81e1165054c91f3f6/1626329848319/zijalitawezuvizogoli.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f13830133357608f3d15d9/1626421296166/small_scale_industry_project_report.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_off0000cd38.bin
21a447b6c28880c257ed5131b8297b6136593953eaeb320c8a03d56623e3435b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD38 16440 bytes
font_01_sfnt_off0000f7be.bin
bfced91cd0141d2626d24e2550b4fb6542d862b42b2859e3ba1176acea1af3fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7BE 10688 bytes
font_02_sfnt_off00011040.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11040 16792 bytes

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