PDF malware analysis — malicious · ebdc0af9afbecfe5

MALICIOUS

PDF

136.8 KB Created: 2011-09-08 05:03:17 Authoring application: FPDF 1.6

MD5: 3e54cb7f0cd29fe7aa28b4f97478be8d SHA-1: dd127caabed6e9f0328013a347337e3808fb0699 SHA-256: ebdc0af9afbecfe53dcda9fc8690456f8685a8447b0a145e9d460f45c4746105

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1559.001 Component Object Model Hijacking

The file is a PDF document that contains an XFA form and an AcroForm button with an action trigger, indicating it is designed to exploit PDF vulnerabilities. ClamAV detection as 'Pdf.Exploit.Agent-36874' strongly suggests a known exploit. The presence of a suspicious, long encoded blob within an extracted stream further supports the exploit vector.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36874 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36874
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
AcroForm button with action trigger low PDF_ACROFORM_BUTTON

PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
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
`stream_001_off000008ed.bin` `38a75e166c979b6ed86dca873c1c4c1dfbd353cb86731d46d72a55452091a1a5`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1446 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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