PDF malware analysis — malicious · 9e37e04b94d100f2

MALICIOUS

PDF

10.4 KB

MD5: 2497bd93826ba143edc56e71b7285101 SHA-1: 61f0eff97253e6a7ef3db4bdd2c25030b8e2bce7 SHA-256: 9e37e04b94d100f261654b68c30206ee72274e0fc0c00459bb4c2111ed472dc1

110 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF 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, named 'embedded_file_obj0001.bin', strongly suggests a delivery mechanism for a secondary payload. No scripts were extracted, and the document body contained mostly unreadable binary data, indicating the malicious content is likely within the embedded artifact.

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` `8b46caf10a0f7f334b3dc827bd7f4022a1cac6426cae24d1c1bd2cb75152282d`	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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