PDF malware analysis — malicious · 3ebc195d4b868a1d

MALICIOUS

PDF

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

MD5: 846f852da6e5a31691bb1e7b5acf8662 SHA-1: 045bb8a0da9d89cd5cd578339979f3c44a541ced SHA-256: 3ebc195d4b868a1ddbdbedbe037e348317ffc293c41c3b48733f9bcc9aba8f7e

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF file identified by ClamAV as Pdf.Exploit.Agent-36874, indicating a known exploit. The presence of an XFA form and an AcroForm button with an action trigger further suggests an attempt to leverage PDF vulnerabilities. An embedded binary artifact was also detected, likely containing the exploit payload. The attack pattern is consistent with exploiting PDF reader vulnerabilities to achieve 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` `83104f17eb0e991f7b53c9a83a5c2262292891b82b04c53cbb14de70103cda5d`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1455 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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