PDF / .PHP malware analysis — malicious · 87a83f1d64edca95

MALICIOUS

PDF / .PHP

37.8 KB Created: 2010-04-18 23:59:42 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 40f00fe96075e9cd854d1fa10bb96aed SHA-1: ac90dc847f3bbf3de86950fb39605ff3b5441174 SHA-256: 87a83f1d64edca95ea3c1b8391f86118f33e8f0bb90354bc00ca7271a7ac7f11

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature Pdf.Exploit.Agent-23688. Static analysis detected embedded JavaScript within the PDF, triggered by optional content groups. This suggests the file is designed to exploit a PDF vulnerability to execute arbitrary code. The embedded JavaScript is the primary mechanism for this exploitation.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-23688 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-23688
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` `30f7df2ec9279e582092c1c38af0df5097dee2d016293a9852d538fa877d405f`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8CC1	1346 bytes

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