PDF malware analysis — malicious · 50b986001774d4e4

MALICIOUS

PDF

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

MD5: aa25d6b911ca787575174db5929068f6 SHA-1: 285db78bdb6b9e2b6896190c99b9b896c0fce0f7 SHA-256: 50b986001774d4e4962a4bb5e8679e7c2929edab46ba8b676fb790fbe10764eb

108 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The file is identified as a malicious PDF by ClamAV (Pdf.Exploit.Agent-36874) and a machine learning classifier. It contains an XFA form and an AcroForm button with an action trigger, common elements in PDF exploits. An embedded binary artifact was also detected, suggesting it may serve as a dropper for further malicious activity.

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` `27d01be06c9e8d5f06872d8d1056af1ab642638eb739075f99fa1ef0ef1fa297`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1400 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.