PDF malware analysis — malicious · be1fc1db81e62628

MALICIOUS

PDF

37.8 KB Created: 2010-04-11 08:31:21 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 13235dcb81ceaca775b8ca421c662ae9 SHA-1: 6bd93518fc183376b8f0c1df2fff10d80ebfaac9 SHA-256: be1fc1db81e62628797a43b6d0b6f4aba4202312216e2347fd4450db85793678

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. ClamAV detection as 'Pdf.Exploit.Agent-22077' strongly suggests malicious intent. The embedded JavaScript is likely responsible for exploiting a vulnerability within the PDF viewer to achieve its malicious objective, such as downloading a second-stage payload.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22077 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22077
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` `f212ceb37d6322d0d3c27e953cea02e19d1570fbd17f5fe430e91d829b4b2b8f`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8CF2	1346 bytes

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