PDF malware analysis — malicious · c933b718c7dccf2d

MALICIOUS

PDF

10.4 KB

MD5: 81551f1d813edc7c459ee5d94e80b0b4 SHA-1: e9fc7c4c10671aacb1a6b6f6cfee3957a68688e0 SHA-256: c933b718c7dccf2d0f21f842ace5f04925072edb9e79845a03bd6fbfa6d0624d

78 Risk Score

Malware Insights

MITRE ATT&CK

T1553.005 Mark-of-the-Web Bypass

The PDF file was flagged for containing an embedded file and exhibiting obfuscated object names, indicating a potential attempt to hide malicious content. The embedded file, named 'embedded_file_obj0001.bin', is the primary indicator of a delivery mechanism for a secondary payload. The XFA form detection suggests a complex document structure often used to facilitate exploits.

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` `ea73f42b5e6d648a6791cde5665e9cf5e46ba164ce52e1f6453a487372fefa60`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x80	13408 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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