PDF / .PHP malware analysis — malicious · fadaa3a0d7be02af

MALICIOUS

PDF / .PHP

37.7 KB Created: 2010-04-11 20:45:47 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 4ee5b268fc8ad6af794a0ffb3e9f5027 SHA-1: 40ec56f75865d252d194388c549f6255f004a343 SHA-256: fadaa3a0d7be02af2564b933540ac20f0df8297b15920b696f51429b60d750b8

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV heuristic indicates this PDF is recognized as a known exploit (Pdf.Exploit.Agent-22605). The presence of embedded JavaScript, specifically a PDF JavaScript action and an embedded JS stream, strongly suggests the file is designed to execute malicious code upon opening. This JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for PDF-based exploits.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22605 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22605
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` `745cbd576ee3331df528f9ff3c4642ebffe10ce3db71ccbff76d595734fdd676`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8C7E	1344 bytes

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