PDF / .PHP malware analysis — malicious · e0f738bb286b7b2c

MALICIOUS

PDF / .PHP

37.8 KB Created: 2010-04-11 20:42:26 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 3524e1bc1aa5c60adc39114a3ef8ad7b SHA-1: 9ee49fbdb64fd8a77feaad8cc5f21bbc40b6999f SHA-256: e0f738bb286b7b2c1ddbe95c837eced9457ecf6b453e6b9959724aea62a78255

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is detected as malicious by ClamAV with the signature Pdf.Exploit.Agent-22593. Static analysis revealed embedded JavaScript within the PDF structure, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. This JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to execute arbitrary code. The exact functionality of the script is not fully discernible due to potential obfuscation, but its presence strongly suggests a malicious intent, such as downloading a secondary payload.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22593 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22593
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.
Optional Content Group with action trigger low PDF_OPTIONAL_CONTENT

Optional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0010_000.js` `a4aa0144761b138d25149b097483b7b592a9db272a270a934cb83089d2b0ff02`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8CC0	1346 bytes

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