PDF malware analysis — malicious · 32c0764137242480

MALICIOUS

PDF

7.9 KB Created: 2009-09-15 19:47:52 Authoring application: Eblasha 7.9.5.9 (via PDF Library 1.5.2.1)

MD5: 5dfa845e51abe6c4afeb44bfa2d3dff9 SHA-1: 4e4266f8a4d7c8374af184c1fc402e03c7c35b13 SHA-256: 32c0764137242480c249ae019c20a099bb65f66ad32feadf42f4aa358a28b4b0

74 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. The presence of PDF_EVAL and PDF_FROMCHARCODE suggests obfuscated JavaScript code is being executed, likely to download and run a second-stage payload. The extracted artifact 'javascript_obj0015_001.js' is also flagged as suspicious. The overall pattern points to a malicious PDF designed for payload delivery.

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.
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.
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)
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_000.js` `00659aee19713f13d4ee368743b49e4313f9af57cef60af2b20ed0f3aff7f064`	pdf-javascript-stream	PDF /JS object 13 at offset 0x36B	21194 bytes
`javascript_obj0015_001.js` `4a61b6fd542001b3f125a0ffcaac505f724bb35dfa996a51af6b91a0059bd0fa`	pdf-javascript-stream	PDF /JS object 15 at offset 0x1B89	178 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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