PDF malware analysis — malicious · 7fbbcde43582c516

MALICIOUS

PDF

23.0 KB

MD5: dd27f35835ed3900446c0639c5399c5b SHA-1: f156059a774b4b54233f82de97accca570efc5e5 SHA-256: 7fbbcde43582c51647f559b457014ddbfb22c21be8526e159487bd2bf401d43f

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ML classifier and ClamAV detection strongly suggest malicious intent, with ClamAV identifying it as 'Pdf.Exploit.Agent-36129'. The presence of JavaScript points to an attempt to exploit vulnerabilities within the PDF reader or download further malicious content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

ClamAV: Pdf.Exploit.Agent-36129 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36129
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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
`javascript_obj0097_000.js` `d54d489a698dfbf3d9db1b0412ee5c4d87635082c9f588ca1746d834c4f3c185`	pdf-javascript-stream	PDF /JS object 97 at offset 0x22	31645 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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