PDF malware analysis — malicious · 8d7993b8cfdb9a2a

MALICIOUS

PDF

10.5 KB

MD5: 2b7d5ad27a9a1313c586bab07dc3f386 SHA-1: 1287132ea1cf53ce1fc1d5cb6e0d3a00a5ff8069 SHA-256: 8d7993b8cfdb9a2a02e8c25852a82fbd1b2838783422ffff54d74211fb8d1578

110 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 this PDF is a dropper or exploit document. The document body content is heavily obfuscated and unreadable, further supporting a malicious intent.

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` `27f0adc5965657ee9ef86f2e407c8eb981178b21af7f3922493ae251b5298f82`	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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