PDF malware analysis — malicious · c63eb61d9eadd14d

MALICIOUS

PDF

10.5 KB

MD5: c103bad9d91808e5b5898462cfd796e0 SHA-1: bb05cdb1f19c246da0e5c0b8d5d6d938d3a455a5 SHA-256: c63eb61d9eadd14d1c384a22c948b2ebaa54d3fbf0286505d83ade0fe0163bf1

108 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1027 Obfuscated Files or Information

The PDF was flagged by ML classifiers and ClamAV for obfuscated object names and embedded content. The presence of an embedded file, named 'embedded_file_obj0001.bin', suggests that this PDF is likely a dropper or container for other malicious payloads. The obfuscation techniques further support the malicious intent.

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` `179227c0c81fddec6236088c663d170a6519b4c52a2b00d820f6b2ea53d356b5`	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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