PDF / .TXT malware analysis — malicious · 8989acfbcc7ffbe8

MALICIOUS

PDF / .TXT

37.8 KB Created: 2010-04-12 01:38:45 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 3ae61000e87e66e2b475faee94825f88 SHA-1: a2afb3e7a8276dc1738e92c8b8e496776638871b SHA-256: 8989acfbcc7ffbe84c93a2543d2ab72a7a6638841d2c342288c7c22bbab94056

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript and an Optional Content Group with an action trigger, indicating an attempt to exploit vulnerabilities. ClamAV detection as 'Pdf.Exploit.Agent-22391' strongly suggests malicious intent. The embedded JavaScript is likely responsible for executing the exploit, though its specific actions are not detailed in the provided evidence.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22391 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22391
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` `f479a94c9f647a8a8caebf536c02651172805a0135bcc18a94bfaba4556007fe`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8CC4	1346 bytes

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