Malicious PDF — malware analysis report

Static analysis result for SHA-256 be3db381ab721ae0…

MALICIOUS

PDF

29.7 KB Authoring application: Soda PDF
MD5: dd075b1cc502c1391a9276afa17c5ede SHA-1: 1d5ac0f28c0feb2ae2b499a4abdc0d4c89e99c0a SHA-256: be3db381ab721ae0dacce7572ad9f773eb17b19dfc6609e568895db91cf05fc2
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 multiple embedded URLs pointing to other PDF files, suggesting a phishing or malware distribution campaign. The document body, though partially corrupted, indicates a lure related to an 'Irregular plural verbs worksheet', which is a common social engineering tactic to entice users to open malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://completeventsolutions.com/uploads/1/3/0/6/130620957/wuvigodi_zugixoweku.pdf
    • http://mljmusic.org/uploads/1/3/0/5/130588740/welasogepin-muwupuso-mevotax-jatofiz.pdf
    • http://agapeholisticaromatherapy.com/uploads/1/3/0/6/130620632/1417128.pdf
    • http://nashobavalleyextractco.com/uploads/1/3/0/6/130605153/130605153.html#irregular+plural+verbs+worksheet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fb7.bin
a9c4d447a3fd07f5ec2a69dd8d6a85530ba2883497c08c6eab389e06e4d18d60		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB7 7236 bytes

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