PDF malware analysis — malicious · a1dd90e55d01329f

MALICIOUS

PDF

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

MD5: 403d1a3a5c9357fc039bfa0a9f59de89 SHA-1: 36992c71ba4791824bd906cc717beb0bb3bc1254 SHA-256: a1dd90e55d01329ff896450d4ed420483ff5769240d39e121e272b62e545f87e

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1059 Command and Scripting Interpreter

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-36874, indicating a known exploit. The presence of XFA forms and AcroForm buttons with action triggers suggests the document is designed to leverage PDF vulnerabilities. The embedded binary artifact further supports the likelihood of exploit code execution.

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` `f4c1359fa50db150fe2150c33b8b20a196bdefb60e73cff530a868ef9c5f94e2`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1421 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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