Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0af7a40195e7ce7…

MALICIOUS

PDF

10.4 KB
MD5: 5ad902e7da30c2f7ad6fe71a7665e7c5 SHA-1: 4823c11f4c34349e05fc207f0d9439b842614c1a SHA-256: c0af7a40195e7ce77e58a968db4fe75585d3458b03555118b9a9cde7e415ecf5
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File

The file is identified as a malicious PDF by ClamAV with the signature Pdf.Exploit.Agent-22927. Static analysis indicates the presence of an embedded file and an XFA form, both common vectors for PDF exploits. The differential parser failure suggests obfuscation or a non-standard structure. The embedded file, 'embedded_file_obj0001.bin', is likely the secondary payload. The overall attack pattern points towards a PDF exploit designed to deliver further malware.

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-22927 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-22927
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin
e800b9f1245dd43658e5f7721913446da6e16d26ddf83e1691fa4008ab28fa95
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x56 13408 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).