PDF / .TXT malware analysis — malicious · 8a986f800255a157

MALICIOUS

PDF / .TXT

37.8 KB Created: 2010-04-15 17:19:57 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 6e501708460d4d80c0c0596c0112b786 SHA-1: 30fe74766d5dd6a9f48bb4b37b07a6d1166a1584 SHA-256: 8a986f800255a1576a83fdd312d4e8d6f92ab0b630a443ab26b076e43c67ff23

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection of 'Pdf.Exploit.Agent-22720' strongly indicates a known PDF exploit. The presence of embedded JavaScript streams and an optional content group with an action trigger further supports this, suggesting the script is designed to exploit a vulnerability within the PDF reader. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for initial access.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22720 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22720
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` `15fabc7da0a13edd45b4cd23c06779facfcba47e0bb90de9a1c761b704bea2f5`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8CBF	1346 bytes

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