PDF malware analysis — malicious · a7f9947dccdd7687

MALICIOUS

PDF

6.6 KB

MD5: 1dc60f6f33ed81795b07f67bf6b8bab4 SHA-1: 3f07667043cc749dd7148de1e0ba33221e24a7e2 SHA-256: a7f9947dccdd76878519a8d5b5f67324483f0402897f3dce80867d7c31ab3067

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings. The ClamAV detection 'Pdf.Exploit.Agent-36086' strongly suggests exploitation of a PDF vulnerability. The embedded JavaScript, named 'javascript_obj0006_000.js', is likely responsible for the malicious payload delivery, although its specific actions are not detailed in the provided evidence. The file's purpose is to exploit a user's PDF reader to execute this script.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36086 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36086
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)
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_obj0006_000.js` `f7a1244524d3e22e8300ffce77e940bc0e00a596ec034a5e55c77dc8a1d19bd9`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	137519 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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