PDF malware analysis — malicious · e4fada7e6689cbab

MALICIOUS

PDF

14.8 KB Created: 2009-06-06 12:30:26 +03:00 Authoring application: NitroPDF 6.0 (via BCL easyPDF 6.00.20)

MD5: 88e1b75ff3cd4f658ec3c1e976eb65ef SHA-1: e77613f0949c737a9e0b3adc8ee6d5b7708e08e0 SHA-256: e4fada7e6689cbabe8c4f71cebfa67d5489fd1868a421a42464c5003dcafc574

60 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_EVAL heuristic firing suggests that the JavaScript is being used to execute arbitrary code, likely to download and run a second-stage payload. The presence of a suspicious extracted JavaScript file further supports this. The document body is largely unreadable binary data, offering no contextual clues.

Heuristics 5

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.
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 paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LURE

PDF has 1 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
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.

Filename	Kind	Source	Size
`javascript_obj0015_000.js` `a56f78316f02cf6402759106c95f411bf5094cf2bfefa6a072011a409b0ca01e`	pdf-javascript-stream	PDF /JS object 15 at offset 0x315	28870 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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