PDF malware analysis — malicious · d7aa3c68c3f209c1

MALICIOUS

PDF

10.4 KB

MD5: e748e53779e0402984b7ea4bd7912185 SHA-1: 0f9080309261ebe1dccc423c6b8c15a70899ae49 SHA-256: d7aa3c68c3f209c1345602ae662239b75198e0beca5f8cb43272b478405c6f65

110 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

The sample is a PDF file flagged by multiple heuristics, including ClamAV's Heuristics.PDF.ObfuscatedNameObject and a high-confidence ML classifier. It contains an embedded file, which is a common technique for delivering secondary payloads. The ML classifier's high score and the ClamAV detection strongly indicate malicious intent, likely involving the execution of the embedded artifact.

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` `1f315baf283c7026397f19fcaec46b9304fbbcf2b8bd9e04f85f97203b2222f1`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x7E	13408 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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