PDF malware analysis — malicious · 4e0b7df3d33b5d2c

MALICIOUS

PDF

10.4 KB

MD5: 0a4dbd3fbcbd4e73094e18a7fd0ea137 SHA-1: 9eba364a99c885d7aa916e487272fc061ae7adef SHA-256: 4e0b7df3d33b5d2c9e68496ed20fb3b5118c493bcd0212ea0944b89affa8e885

108 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for an obfuscated object and an ML classifier indicating high maliciousness. The presence of an embedded file, 'embedded_file_obj0001.bin', suggests it's a dropper. The document body is unreadable, but the combination of PDF obfuscation and embedded content strongly indicates a malicious intent to execute a secondary payload.

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` `01f9ab90a086e3c966ee1be4eed5e27002422d807eeeeab98997d5dfad3f1c33`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x7A	13408 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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