PDF malware analysis — malicious · c22a65473a63e33a

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: 7952a462ad6345f0cbd94923be79e719 SHA-1: d3304e1f8376562b8b378cf25708c436d8627c7d SHA-256: c22a65473a63e33a7e32098002e4fe1becff59ce23e903e260dc2a4cf8ba1e7e

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections for 'Pdf.Exploit.Agent-14806' and 'Win.Trojan.Agent-36166' strongly suggest malicious intent. The embedded JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to download and execute a secondary payload.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-14806 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-14806
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` `bad41fa3b74b4726734290508e01097aae5e8a1a8387ba7eb9ec3a8f47d87f99`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74777 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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