PDF malware analysis — malicious · 9b61c4b08b0e58d2

MALICIOUS

PDF

10.4 KB

MD5: 3ff9d348ebdcb6734ba89397654d0d7c SHA-1: 4fc8610fdef74ad966feb5ed02723beb9b242bae SHA-256: 9b61c4b08b0e58d212082576b1e1ced57d9510e03ef32954f59ef9173641396d

78 Risk Score

Malware Insights

MITRE ATT&CK

T1557 Adversary-Controlled Chain of Trust

The PDF file was flagged by ClamAV with 'Heuristics.PDF.ObfuscatedNameObject', indicating a suspicious structure. It also contains an embedded file, 'embedded_file_obj0001.bin', which is a common technique for delivering secondary payloads. The document body content is heavily obfuscated and unreadable, further suggesting malicious intent.

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` `2b448d0a3a1c69f9a06ab0e819d72fb74f91d1dd15186420f2631fffbdbdb812`	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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