PDF malware analysis — malicious · bfb2f04ceb18cf92

MALICIOUS

PDF

10.4 KB

MD5: ecafaece609c9d7ae659cf1df48379a3 SHA-1: 6a8a8fb1b989ea93d641ace14660d9e041dae6a9 SHA-256: bfb2f04ceb18cf92cc94021e50061058be90b733193014578c779bc557661eab

108 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is a PDF identified as malicious by multiple heuristics, including a critical ClamAV detection for obfuscated objects and an ML classifier. It contains an embedded file, which is a common technique for delivering secondary payloads. The obfuscated nature and embedded artifact strongly suggest an attempt to bypass defenses and execute malicious code.

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` `4159359fec660f7ae99fdbe6ed8f341ccd21e060b41c5d1bad24df6cbabb1ed4`	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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