Malicious PDF — malware analysis report

Static analysis result for SHA-256 7deaa74ba862a552…

MALICIOUS

PDF

10.4 KB
MD5: 2276a7241328ea0815cbdcfc901cc13f SHA-1: 179ae254be909abb0e8944571a65da83f4fe2598 SHA-256: 7deaa74ba862a5520e7aa2caf00a53fdf841f9ee50f41189dd665965b8fc45e4
72 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment T1140 Deobfuscate or Obfuscate

The PDF file exhibits characteristics of malicious intent, including the use of XFA forms and obfuscated objects, as indicated by the 'PDF_XFA' and 'CLAMAV_DETECTION: Heuristics.PDF.ObfuscatedNameObject' heuristics. The 'Long encoded blob' finding further suggests attempts to hide malicious content. While no specific document body text is readable, the presence of these indicators points towards a likely attack pattern involving the delivery of a malicious payload, potentially through obfuscated code or scripts.

Heuristics 4

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • 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
stream_000_off00000048.bin
2094e3add6551f810c2595ca51afc91ba9b572816e099ea839e0f523826a1805
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48 13408 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).