MALICIOUS
72
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF file exhibits characteristics of malicious intent, including the presence of an XFA form and detection by ClamAV as an obfuscated object. The differential parser failure suggests attempts to hide malicious content. The embedded artifact 'stream_000_off00000048.bin' is highly suspicious and likely contains the malicious payload. The overall pattern suggests a document designed to exploit PDF vulnerabilities for initial access.
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_off00000048.bin532e3a506cb17ce07a844c2b1888318acd090fb1cf9dd52e9c781610875bca4b |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x48 | 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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