PDF malware analysis — malicious · 41923e5e3cfa3f84

MALICIOUS

PDF

2.7 KB Created: 7221-01-01 Authoring application: 3443

MD5: af023364680cf2765ebaeeeeb150556d SHA-1: e7d7a972f0a7891bad26e33ec0d347a476b9d364 SHA-256: 41923e5e3cfa3f847901d113bcf579434e9b8bafade1045748630d3aeda1f9ff

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 and the presence of an extracted JavaScript file. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests this JavaScript is malicious and likely exploits a vulnerability within the PDF reader. The extracted JavaScript file, 'javascript_obj0013_001.js', is the primary IOC. Due to the obfuscation and lack of specific script content, the exact exploit and payload delivery mechanism cannot be definitively determined, leading to a lower confidence in family attribution.

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` `5e01cb872e3b451045eecc8c86810f0e139ac7d97bc707b34f160171b1e0f1a0`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4805 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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