Malicious PDF — malware analysis report

Static analysis result for SHA-256 679979a8fa789ec9…

MALICIOUS

PDF

38.1 KB Authoring application: pstoedit
MD5: 9fb6027a1a483193c9f50900494a8c65 SHA-1: 44862d16ecfdc66975fc9115d29e72d290726958 SHA-256: 679979a8fa789ec9a5be9bacad5fe9fb4bd14976a09b68b1eb5cd8956b761fc5
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by multiple heuristics, including ClamAV and an ML classifier, indicating it is likely a phishing document. The document body, though obfuscated, contains embedded URLs that point to other PDF files, suggesting a multi-stage download or redirection scheme. The presence of external URIs and the overall detection as 'Pdf.Phishing' strongly suggest a phishing attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://anofasonline.com/uploads/1/3/0/6/130639648/ca877dd439b8dd.pdf
    • https://gijegumeb.weebly.com/uploads/1/3/0/4/130491319/44dbf236d9.pdf
    • http://elispinheirobellydance.com/uploads/1/3/0/2/130272616/b09bc98db44b6.pdf
    • http://mercaditosustentable.com/uploads/1/3/0/2/130272381/potupu-tegel.pdf
    • http://customcateringco.com/uploads/1/3/0/6/130604539/5364992.pdf
    • http://allergy.mediutopia.com/uploads/1/3/0/7/130775413/130775413.html#cumulative+frequency+graph+in+statistics

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000108e.bin
33cbc40731751f9523e508ba3aa64cbf9ecdc261862dcffeb49291a28438bbaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x108E 7960 bytes

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