PDF malware analysis — malicious · 984bef20fdc2d549

MALICIOUS

PDF

10.4 KB

MD5: 33096b1714ed34b55573f9b90450e4fb SHA-1: 310a1d298358e4c193cfeb55c78f807d20b559d8 SHA-256: 984bef20fdc2d549e81c069558ca079498e97a79b3d28b9b56fefe2ce6c7c6c4

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. The presence of an embedded file, 'embedded_file_obj0001.bin', strongly suggests that this PDF is a dropper or exploit document designed to deliver a secondary payload. The document body content is heavily obfuscated and unreadable, further supporting the malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

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` `aed0fda454b54c00b274de13c15d62e473b96ae26f160c907a8c1bdf1076b18a`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x88	13408 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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