PDF malware analysis — malicious · bad1283f8479a651

MALICIOUS

PDF

14.4 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)

MD5: 440fea647848a628a6e8792c0ca881b8 SHA-1: 08d29a2224febd8a4014fdfc6dda0c90a6046a67 SHA-256: bad1283f8479a65168df770d0e93ec3a964b160ecaac50ba9769d9e1d492fd51

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The file is a PDF containing embedded JavaScript, which is a common vector for exploiting vulnerabilities. ClamAV detections indicate it is a known Trojan. The embedded JavaScript is the primary mechanism for delivering the malicious payload, likely involving the execution of further stages or exploitation of a PDF reader vulnerability.

Heuristics 4

ClamAV: Win.Trojan.Agent-36166 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-36166
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `387940d35a86a492fdcf92a6812b4f456fb92e3cbc747f5cd752bf6dab771870`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74365 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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