Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c0074e2e47588a8…

MALICIOUS

PDF

82.7 KB Created: 2021-07-20 00:01:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 9ad0c6027e616ba793e81cd0e35228df SHA-1: b5a694c9e007761ec4b56895e96a841678cf2929 SHA-256: 0c0074e2e47588a8500e5d39f46004653348c4722daf9086270a53fa0fa02252
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. The presence of embedded URLs, despite some being marked as benign, suggests an attempt to lure the user to external resources. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a phishing or credential harvesting intent. No scripts were extracted, but the overall structure and detection indicate a malicious document designed to exploit vulnerabilities or trick the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8298

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/qI_NY8u86tA/square?utm_term=harriet+tubman+and+sojourner+truth
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f5652b6d5e991e36f90464/1626694955933/27539711549.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8c8b04c181567023cab22/1625868464577/pazeki.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e878de8e751c0c8937e7b8/1625848031021/77879019191.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60edbe3eafeffb59e66e89aa/1626193470665/harry_potter_1_streaming_version_longue.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60edeba24ff81d3e2815abe7/1626205090100/epic_thunderstorm_and_rain.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_off0000e113.bin
8a6b6ca14d5c9b54f874cf2db9287c7fabcfee48a20ece0a611ee33a6608a535
pdf-font-stream PDF embedded font (sfnt) at offset 0xE113 17324 bytes
font_01_sfnt_off00010e05.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x10E05 16792 bytes
font_02_sfnt_off0001261c.bin
579ecc6970a90e5b8c4a4d36e1054a649bfbb4f2eb4a3ce59b194718d10f48bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x1261C 10828 bytes