MALICIOUS
80
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The file is a PDF document identified as malicious by ClamAV due to an obfuscated object name. It contains an embedded file, which is a common technique for delivering secondary payloads. The PDF structure also indicates the use of XFA forms, which can sometimes be leveraged for exploitation. The embedded file, 'embedded_file_obj0001.bin', is the primary indicator of malicious activity.
Heuristics 5
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ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTIONClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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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.
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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_obj0001.bin8217b611f2f61809890382d8659f8b2d1ae3f4d8d17c7730a0a7efbd19637a6d |
pdf-embedded-file | PDF EmbeddedFile object 1 at offset 0x8B | 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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