PDF malware analysis — malicious · e811a27fa268a8df

MALICIOUS

PDF

10.4 KB

MD5: e985e9cad67df77b1a582992fe0851f0 SHA-1: d2669b9c4fae0ff578a2cf2345c0a537304cbc23 SHA-256: e811a27fa268a8dfbb43c1d8e3f0007fdfaa24278d9d73ae19fc116bde2cf96a

108 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for obfuscated objects and an ML classifier indicating high maliciousness. An embedded file was also extracted, suggesting the PDF is a dropper for a secondary payload. The document body was unreadable, but the presence of an embedded file and the heuristic firings strongly indicate a malicious intent to deliver further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

Heuristics 4

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One 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.bin` `e8d46a6f20fd7db4912530040d39d30acd69c36efd7d1eb62fff528c92de4147`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x82	13408 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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