PDF malware analysis — malicious · 9d9b13558cb87529

MALICIOUS

PDF

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

MD5: 54958f4569f0d543662c69c076f7dc10 SHA-1: 0bff6b39a2e25239e65e9aa34eeb5dd1f2f31cf9 SHA-256: 9d9b13558cb87529a3bbdd9e72d8371a6da153132d751f58e1673d4d0252fd96

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File

The PDF file was detected by ClamAV as Pdf.Exploit.Agent-36874, indicating it contains a known exploit. The presence of XFA forms and AcroForm buttons with action triggers further suggests malicious intent, likely to exploit a PDF viewer vulnerability. No scripts were extracted, but the file's structure and ClamAV signature point to a direct exploit.

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` `7260512fda6a26d45ab1338bb99f800d2124d4545062971e314ead8fbbf7d25a`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1404 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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