Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0cd79a193da510f…

MALICIOUS

PDF

79.5 KB Created: 2021-07-15 22:00:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 245007dbcccb5a382394d94f5d63bece SHA-1: c8db62fdd0879a2b4deb84cb09187cc63f0ccbc4 SHA-256: c0cd79a193da510f08caa60dd3a9b9df91110deaee5ea1062750b25db9a87cf3
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains embedded URLs that likely lead to malicious content or phishing pages. The ClamAV detection 'Pdf.Phishing.Trojan' further supports its malicious nature, indicating a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8740

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/UQ8tT55rDuk/square?utm_term=free+fire+hacked+version+download+android
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e7da2ee8ef4d41b4faad69/1625807406251/16249618339.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60effaec5d627c4551e22a87/1626340076638/bozadaviru.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f0107f08697753172fe04c/1626345599318/in_your_eyes_2014_full_movie_free.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60eda02cd2a6f635453d2185/1626185772678/6467151768.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f049d9c87d261ee9fe59dd/1626360281781/lozitodoraxexazezud.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7a543687a3d659a4932de/1625793859615/legal_firm_names.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_off0000d429.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD429 16792 bytes
font_01_sfnt_off0000ec3b.bin
6978e31293e27dc5a75693685b4f1edd4759c8b56c0e4461bc276d3c0bb3a4da		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC3B 17252 bytes
font_02_sfnt_off0001196b.bin
1132a8d17a97bb85bba192782192997d13428ea47e6ae8a038d1f3fb882aef28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1196B 10696 bytes

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