PDF malware analysis — malicious · 7a3ad56262ea8f15

MALICIOUS

PDF

9.1 KB Created: 2009-03-24 04:45:01 Authoring application: KncshCqlgpNSeBMARZWF (via YAvCQIVHejhZHBKu)

MD5: 5b10951dc40bff180cf9cf6b6165c8fd SHA-1: 1f990119cf517656876edd2b8fb0982b5ddac8ae SHA-256: 7a3ad56262ea8f15d495550b5c518cb4874840db409efd0e82f71d328f3e6020

78 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF file was detected as malicious by ClamAV with the signature 'Pdf.Exploit.Agent-35572'. Static analysis revealed embedded JavaScript, indicated by the 'PDF_JAVASCRIPT' and 'PDF_JS' heuristics, and a suspicious extracted JavaScript file. The presence of JavaScript in a PDF commonly indicates an attempt to exploit vulnerabilities or download further malicious content. The document body text appears to be obfuscated or corrupted, providing no clear user-facing lure.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-35572 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35572
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_obj0007_000.js` `b3b416219f60fb28c6aa13bff96b53fe1633bf98bcc3a0d6e6c0040e4b8c16ca`	pdf-javascript-stream	PDF /JS object 7 at offset 0x4E3	7266 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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