Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb6e39d53f499c0d…

MALICIOUS

PDF

6.8 KB
MD5: 66d1cf08aa7bd44ae47724ff0b0d5ecf SHA-1: 1a7291bef67f0d0dfc64d40bd2f1bf10ba1fd29e SHA-256: bb6e39d53f499c0d752ec8d70eecc2fa70959a87251a2022e4428985e26627e9
66 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. The presence of a PDF_EVAL heuristic firing suggests that the JavaScript is being used to execute arbitrary code, likely to download and run a secondary payload. The script obfuscation also points towards malicious intent. No specific family could be identified, and the benign URLs do not provide further indicators.

Heuristics 6

  • eval() call high PDF_EVAL
    eval() found — commonly used for obfuscated exploit execution (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. (matched inside decoded stream)
  • 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. (matched inside decoded stream)
  • String.fromCharCode low PDF_FROMCHARCODE
    String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
  • 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.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/pdf/1.3/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00000327.js
664e491e79e64183f24ab8cdfd487d1a67ee71ba535038899d08a99b3d8fd389		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x327 962 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 eval/decoder/string-building token(s).
objstm_0024_00.bin
7df408577dc85a1a9cc32594087e11a4699ea885148a71754e82292b91f5eba6		 pdf-objstm-decoded PDF /ObjStm 24 0 obj (inflated) 331 bytes

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