MALICIOUS
98
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious Link
T1204.002 Malicious File
The PDF file was detected as malicious by ClamAV with the signature Pdf.Exploit.Dropped-90. Static analysis indicated the presence of an embedded file and the use of ASCIIHexDecode filters, which are common in PDF exploits. The file's structure suggests it is designed to exploit a vulnerability and drop a secondary payload.
Heuristics 5
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ClamAV: Pdf.Exploit.Dropped-90 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Dropped-90
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ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEXHex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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Embedded file low PDF_EMBEDDEDPDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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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.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_file_obj0001.bina5e8aa7e3ddd10a930a2a1e6f5ba6ac8386a1844632457034e550cf89e584bbd |
pdf-embedded-file | PDF EmbeddedFile object 1 at offset 0x5A | 1874 bytes |
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