PDF malware analysis — malicious · ffad233720c73c60

MALICIOUS

PDF

10.4 KB

MD5: c45f5258db41b80e365536c2be6a2479 SHA-1: f262b4ea507136d3e0145a29b19bfe5d0f6d8f32 SHA-256: ffad233720c73c60d7281dacc7f275d80915fd8dcbeeb2709f6fc13cc1d1628c

78 Risk Score

Malware Insights

MITRE ATT&CK

T1555 Credentials from Password Stores T1027 Obfuscated Files or Information

The PDF file was flagged by ClamAV with 'Heuristics.PDF.ObfuscatedNameObject', indicating obfuscation techniques were used. Additionally, a PDF_EMBEDDED heuristic fired, confirming the presence of an embedded file named 'embedded_file_obj0001.bin'. This embedded file is the primary indicator of malicious intent, likely serving as a dropper for a secondary payload. The XFA form heuristic suggests a more complex document structure, potentially used to facilitate the exploit.

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` `c11c51213e8c3877c0fa3aa95e46e85a0663652716e8eb9b0a4379f8be225347`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x86	13408 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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