PDF malware analysis — malicious · 1e8d978c23abfced

MALICIOUS

PDF

2.7 KB Created: 682 Authoring application: 8982

MD5: c3555a097b51a8461ee33044cea9980f SHA-1: 0cdcfa5404dfb46df13e1c3d9334753b073f4600 SHA-256: 1e8d978c23abfced67ee0018dcd510655499382c65d77b072703d8e5a6d2e75f

96 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 including 'PDF_JAVASCRIPT' and 'PDF_JS'. The 'EXTRACTED_FILE_STATIC_TRIAGE' heuristic flags suspicious elements like hex escape obfuscation and script obfuscation within the extracted 'javascript_obj0013_001.js' file. While the specific actions of the JavaScript are not fully discernible due to obfuscation, its presence and the critical ClamAV detection ('Pdf.Exploit.Agent-36014') strongly suggest it's used to exploit a vulnerability and deliver a malicious 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` `ab34fcf31b7085b06ead2b86d7c55b4218a6581b0b73b36e22f4d55fe262a0b7`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4782 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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