PDF malware analysis — malicious · 4503039c5c388b0b

MALICIOUS

PDF

37.8 KB Created: 2010-04-15 07:32:43 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: ae51b3c618e3b3f6bf5208b4b90445a7 SHA-1: d9e732dca3534f2f9b1c783744cbf7a5b9f9cc75 SHA-256: 4503039c5c388b0b98ab66081d62bf854ce67b39670feee5f9f2f4d2c6a7807f

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ClamAV detection 'Pdf.Exploit.Agent-22226' strongly suggests this is a known exploit. The embedded JavaScript is likely designed to download and execute a secondary payload, a common technique for initial access or further infection. No specific IOCs like URLs or hashes were extracted from the script content itself.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22226 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22226
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` `b9a2a93f2e3e43db8403051bd869651db0893e347f5cac795ad335359d4b1413`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8CD8	1346 bytes

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