Malicious PDF — malware analysis report

Static analysis result for SHA-256 7013e66ebdb02d57…

MALICIOUS

PDF

69.8 KB Created: 2021-07-12 20:37:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c0bafaed273dc35a26800f65ed6ee2e7 SHA-1: 9f473f0cdca2fdacb122e0c4da83a230f1f50853 SHA-256: 7013e66ebdb02d578cb1a870aae85f7e8056b6f6e592815bf058b3d490bb4213
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected by ClamAV as Pdf.Phishing.Trojan. It contains embedded URLs that point to external websites, suggesting an attempt to redirect users. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs indicate a likely phishing or malware distribution attempt, aligning with the Spearphishing Attachment technique.

Machine Learning

  • Nyx PDF Classifier clean score 0.1660

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/pL_UGxDroB4/square?utm_term=life+of+ram+audio+song+download+mp4+telugu
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7db1781ab8d1aa9df0082/1625807639902/lotic_water_bodies.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e7e76a5c13cc4fedeb72c8/1625810794982/13119444776.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_off0000afb0.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFB0 16792 bytes
font_01_sfnt_off0000c7c7.bin
4f45aa0b5a293ecfd819860eb96100de7add86c071ecb6ae7998d1541b2f20b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C7 11064 bytes
font_02_sfnt_off0000e167.bin
0c95415dab4a88b96557231f8ca86ab369998b258d2fd04cea09ca5fb2941460		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE167 15564 bytes

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