PDF malware analysis — malicious · f5a5f7b06cf348dd

MALICIOUS

PDF

348.9 KB

MD5: 6dd747bb29ec8cea16e388cb6b34ca26 SHA-1: 76ce5469bc18f0179554305d38b2d1ba075511b9 SHA-256: f5a5f7b06cf348dd0d9024b4debb96c5923f4b1b6bc7a0040b516e3863443117

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The presence of PDF_UNESCAPE and PDF_FILTER_HEX suggests obfuscation and potential exploit code. ClamAV detection as Pdf.Exploit.Agent-36189 confirms its malicious nature, likely exploiting a vulnerability to execute code.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-36189 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36189
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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.
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_obj0008_000.js` `532b6d5ea22a22457e3d78e4fe9bb0a7d93c8818fee1945ee56425eb6a03a5a5`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	118839 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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