PDF malware analysis — malicious · b7d85349b8cf3388

MALICIOUS

PDF

2.7 KB Created: 5891-01-01 Authoring application: 321

MD5: 0f1c3ceedb08042660991535ffcc8561 SHA-1: dc5c28bb38afdea1415f3cf561ac414c0cf9cb14 SHA-256: b7d85349b8cf338832018d8d0d6b57cadabe8cfce2fd86d740c51d127333e973

96 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The CLAMAV_DETECTION heuristic identifies it as Pdf.Exploit.Agent-36014, suggesting it exploits a known PDF vulnerability. The extracted JavaScript file, javascript_obj0013_001.js, shows signs of obfuscation and hex escape sequences, typical of malware attempting to hide its malicious actions, likely to download and execute a second-stage payload.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `4f00be6892594464273272b78f00911abe2a07a9628e88a2c60e153c9d5db85f`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4775 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).

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