MALICIOUS
128
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1059.001 PowerShell
T1105 Ingress Tool Transfer
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection (Pdf.Exploit.Dropped-156969-1) and an ML classifier indicating maliciousness. The presence of an embedded script payload and an embedded file (embedded_file_obj0010.bin) strongly suggests the document is designed to exploit a vulnerability and download a second-stage payload. The document body text appears to be obfuscated or corrupted, providing no clear user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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ClamAV: Pdf.Exploit.Dropped-156969-1 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Dropped-156969-1
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Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOADPDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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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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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 |
|---|---|---|---|
embedded_file_obj0010.bin8f60ce338bf2b3730156b4a5de677c941b928f1a9d77d1271c0f9c92456d6b8e |
pdf-embedded-file | PDF EmbeddedFile object 10 at offset 0xCB8 | 7229 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 4 long base64-like blob(s).
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