Malicious PDF / .PHP — malware analysis report

Static analysis result for SHA-256 191c48e980246d65…

MALICIOUS

PDF / .PHP

27.7 KB
MD5: 94e705100d8342aa965d96daae735b93 SHA-1: d371cb30ab9fd0f27aec218838165f1bc60d0e08 SHA-256: 191c48e980246d651312508a78885e02705d7ea728143e25a331c51af94e5998
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 'Win.Trojan.Agent-36100' on both the original file and an extracted artifact strongly suggest malicious intent. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for malware delivery.

Heuristics 4

  • ClamAV: Win.Trojan.Agent-36100 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-36100
  • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0008_000.js
e458dd01b04884760a24afafc04dfcc14dc3248cf0130276405c3aa5986c6846		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 27573 bytes
Detection
ClamAV: Win.Trojan.Agent-36100
Obfuscation or payload: unlikely
legacy_pdfkit_stage_000.js
0f19086077b322bfdaca9fb0bc97f7eb4561cad9aee65caf57caa1763e6b0ade		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 15165 bytes

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