PDF malware analysis — malicious · afdf2db96e47daf7

MALICIOUS

PDF

13.0 KB

MD5: 1fa52c97e5f00caf9266ca30aaaa5e76 SHA-1: 3aff52f8ff8377a95bfd9cb662e5718530cda237 SHA-256: afdf2db96e47daf739e08cb547f77436b92b4005e410a4dbf586bfab025f9210

86 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The JavaScript stream, identified as javascript_obj0006_000.js, is heavily obfuscated and likely responsible for exploiting a PDF vulnerability to execute malicious code. ClamAV detection of 'Pdf.Exploit.Agent-36086' further confirms its malicious nature. The primary attack vector appears to be leveraging user interaction with the PDF to trigger the exploit and subsequent payload execution.

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` `47e9967931d6a92699229b8a117f077c00a00f518c9f7ebbb9fe56ed1e6373f7`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	990618 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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