PDF malware analysis — malicious · d06f42d6bea93a52

MALICIOUS

PDF

10.3 KB

MD5: dc4ebaec8ca99b4020b4aa18faa967cf SHA-1: 9321a637f2830297eb731761d05a919fe3d7a86d SHA-256: d06f42d6bea93a52e5723947ab5eeaf0e3cd17f8fc9dd45833d402a8e94323f0

108 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 a critical ClamAV detection for obfuscated objects and an ML classifier indicating maliciousness. The PDF contains an embedded file, which is a common technique for delivering secondary payloads. The document body is heavily obfuscated and unreadable, further suggesting malicious intent. The primary attack vector appears to be exploiting a PDF vulnerability to execute the embedded malicious content.

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` `e2ce6416ce2aa4211366a83f57d03e7543f3a5189d796e467cee98e213b4785c`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x8C	13408 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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