PDF malware analysis — malicious · 2f2268c78bd845b3

MALICIOUS

PDF

37.9 KB Created: 2010-04-15 07:38:06 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 202aab2839c23e69b56063af928caeaf SHA-1: 276612378d8afa94492d7726b513914f2261187e SHA-256: 2f2268c78bd845b3f2c3d1cf6faa2c2a05f7531e2b48c1454f363b73f5cfd01e

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of a javascript_obj0010_000.js artifact. The ClamAV detection 'Pdf.Exploit.Agent-22227' strongly suggests this JavaScript is malicious, likely exploiting a vulnerability within the PDF reader to achieve arbitrary code execution. The specific intent of the script could not be determined due to its obfuscation or truncation, but its presence is the primary indicator of malicious activity.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22227 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22227
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` `16b045d73af379b29bd2d96c93789f5b754959b93e1c42446dac32798b140de7`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8D15	1346 bytes

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