PDF malware analysis — malicious · d3f3ad59ef82b93d

MALICIOUS

PDF

6.6 KB

MD5: 784ad2cfa35b63bf62841dfa58876fc1 SHA-1: 3ca966b945a63ab6cf5193ebb2cc20a3e32db1b5 SHA-256: d3f3ad59ef82b93d53bb6e589b2aec43fe0b23f3a70cc2aa00c54b3003e5f49c

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Pdf.Exploit.Agent-36086' strongly suggests a known exploit. The embedded JavaScript is likely responsible for executing the exploit, potentially leading to further malicious activity. No document body text was available for analysis, but the presence of JavaScript and the ClamAV signature are sufficient indicators of malicious intent.

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` `7ffecc385b653cb8676015ca40488b4cb677201b63bac8f24b78cfccbb035bc0`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	137518 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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