PDF malware analysis — malicious · 9edb1c52d8cd58b6

MALICIOUS

PDF

36.6 KB Created: 2010-03-01 06:45:35 +03:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: ac70ae8c33c2a40244af60f13ed4fc58 SHA-1: 3c2292fc576a2758307e8d934d6c5bd15db17dcb SHA-256: 9edb1c52d8cd58b6a168567b082736c76f2015acd30f006ae804eb3d530afb65

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, indicated by multiple heuristic firings related to PDF JavaScript actions and streams. ClamAV detection as 'Pdf.Exploit.Agent-13744' strongly suggests this is a malicious PDF exploiting a known vulnerability. The embedded JavaScript is likely responsible for executing the exploit, although its specific actions are not detailed in the provided evidence. The document body contains garbled text and standard TCPDF example strings, offering no clues to the lure.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-13744 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-13744
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` `0c644764d8e649c3fba5f3c05e3acf08b0163b4e18e135e2dc62ed4da16d4673`	pdf-javascript-stream	PDF /JS object 10 at offset 0x7094	7346 bytes

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