MALICIOUS
72
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.002 Spearphishing Attachment
The PDF file exhibits characteristics of malicious intent, including the use of XFA forms and obfuscated objects, as indicated by the ClamAV detection 'Heuristics.PDF.ObfuscatedNameObject'. The presence of a suspicious extracted artifact, 'stream_000_off0000002d.bin', suggests it may contain or lead to a secondary payload. The differential PDF parser failure also points to potential evasion techniques. Without a document body or script content, the exact delivery mechanism and payload are unclear, but the overall pattern suggests a phishing or exploit attempt.
Heuristics 4
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ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTIONClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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XFA form low PDF_XFAPDF uses XML Forms Architecture — can contain script logic
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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe 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.
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne 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.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_000_off0000002d.bin99907a3f391b7c66b6b3aeec353910370016a4a628afbba19125712ee3c03f05 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x2D | 13408 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 1 long base64-like blob(s).
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