Malicious PDF / .COM — malware analysis report

Static analysis result for SHA-256 2e3548ec214d27fd…

MALICIOUS

PDF / .COM

2.9 KB
MD5: a1a726f8531680229d80f8e88e807130 SHA-1: 903489905571fe12ba69cff1feb5c794b4942c9d SHA-256: 2e3548ec214d27fdd86c2b625897d4fbb956cddc8887ee3cabab77a19db4d0a7
118 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/Shell Script Execution: JavaScript T1566.001 Phishing: Spearphishing Attachment

The PDF file contains obfuscated JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_UNESCAPE. The embedded JavaScript file, javascript_obj0006_000.js, is likely responsible for executing malicious actions. The ClamAV detection 'Heuristics.PDF.ObfuscatedNameObject' further confirms the malicious nature of the file, suggesting it's designed to evade detection through obfuscation techniques.

Heuristics 5

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • unescape() call high PDF_UNESCAPE
    unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
  • 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.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0006_000.js
56baf4e54772052ce6abebab8b013a49bd63543684c958069ae3ed825c4eb8a9
pdf-javascript-stream PDF /JS object 6 at offset 0x1BC 1693 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 eval/decoder/string-building token(s).