PDF malware analysis — malicious · d6cb2c844460b940

MALICIOUS

PDF

10.4 KB

MD5: e4e335c0912ad0fdcfc6d39e8e6c549b SHA-1: d01230f39b13199b0b9b7438eb169ff004cb0a6e SHA-256: d6cb2c844460b940f2e94fc7245a9b49ac278944ac131a4360479e17b03bf1b5

108 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF was flagged by multiple heuristics, including a critical ClamAV detection for obfuscated objects and an ML classifier indicating maliciousness. The presence of an embedded file, named 'embedded_file_obj0001.bin', strongly suggests this PDF is a dropper or exploit document. The document body content is heavily obfuscated and unreadable, providing no direct clues to the lure.

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` `fe77f87d2d9a59cb18c90bc8578e2e70cfd494bc02737433a46b818fcab974e5`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x86	13408 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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