PDF malware analysis — malicious · 9ac5189e41f9f554

MALICIOUS

PDF

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

MD5: fa8260eb42b43404ff385ee0c6fd9d69 SHA-1: e8667783feb6625f247367428eeaeceb75801bda SHA-256: 9ac5189e41f9f554e9680bd990a793c4aec3e66330fe0a8dbc7f7293c7ae6d04

108 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File

The file is a PDF document identified as malicious by ClamAV (Pdf.Exploit.Agent-36874) and a machine learning classifier. It contains an XFA form and an AcroForm button with an action trigger, indicating it is designed to exploit PDF vulnerabilities. An embedded binary blob was also extracted, likely serving as the malicious payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

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` `65041a8aecbe3dff6a5ed505198835d9aa24045eae5c5d997c07fc208eba82a2`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1407 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.