Malicious PDF — malware analysis report

Static analysis result for SHA-256 92e5d10477c406e4…

MALICIOUS

PDF

14.3 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)
MD5: 3a1dceb3a61af2545a83ec775f1c5b18 SHA-1: 4e419b90614eb503ebd0e5af12f01dff7a698575 SHA-256: 92e5d10477c406e4438b8d7f50eb9affb48680948fac58acb3c2c7bdbbb1130f
138 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection confirms this file is malicious, identifying it as Win.Trojan.Agent-36166. The embedded JavaScript is likely responsible for executing malicious code, potentially downloading further payloads or performing other harmful actions on the victim's system. The document body is unreadable, so the rationale is based solely on the technical findings.

Heuristics 5

  • 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.
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0007_000.js
600d0081be44f44ab2cf1c58e68139ece13bdfd953f38e6852e022ecdf688be9		 pdf-javascript-stream PDF /JS object 7 at offset 0x1A5 74889 bytes
Detection
ClamAV: Win.Trojan.Agent-36166
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.