Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d2c9d9859e85ecc…

MALICIOUS

PDF

41.9 KB Authoring application: pstoedit
MD5: bb503d0e624cccc115a140d2a03892ed SHA-1: e8b097383d2b7fc2ea5d7dcc19c6bc5eff01905c SHA-256: 8d2c9d9859e85eccf759de76b21e9a7c4c5fd4e2b2850a0d1cf19d4a22500405
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains embedded URLs that likely lead to further malicious content. The document body, though truncated, suggests a lure related to job applications ('Cover letter cv template word'). The presence of multiple suspicious URLs indicates a phishing or credential harvesting attempt.

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://cuochibrianza.weebly.com/uploads/1/3/0/4/130483757/2613533.pdf
    • http://audiostart62.icu/uploads/2020/01/29/6965259.pdf
    • http://thendralgardens.com/uploads/1/3/0/6/130604370/8257450.pdf
    • http://dulazip.ntihomirova.com/uploads/2020/01/28/zurozomigoguv_pidusomorapuge_muxojunedelogop.pdf
    • http://therealmommy.com/uploads/1/3/0/3/130323159/3b223b5cedae51.pdf
    • http://neokundalini.org/uploads/1/3/0/2/130271190/130271190.html#cover+letter+cv+template+word

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010c9.bin
5135c1c333cd4d6d49529c00e3315953e0ea2eac32ebac44687cc70fa21507b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C9 7948 bytes
font_01_sfnt_off00005cfe.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFE 16204 bytes

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