PDF / .PHP malware analysis — malicious · ccff288a1a605c9a

MALICIOUS

PDF / .PHP

37.8 KB Created: 2010-04-11 20:42:37 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 7df37e28e8d05a8d7431c50f07f67724 SHA-1: 42c7a89033f6fe76e84dfca482d15b1a018fe5e2 SHA-256: ccff288a1a605c9aca8ec95988ba546a5d329c168b409cbb9799c00549f8ad5b

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-22594. Static analysis revealed embedded JavaScript within a PDF structure, triggered by an optional content group. This JavaScript is likely responsible for exploiting a vulnerability to download and execute a secondary payload, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristic firings. The exact behavior of the script is not fully discernible due to potential obfuscation, but its presence strongly suggests an exploit delivery mechanism.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22594 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22594
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` `d5efe43842b430c9ab93a01d0d38c59e818bbc9ff0175cc42c7794b1fdc29224`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8CDD	1346 bytes

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