PDF malware analysis — malicious · ee87182d90f181f5

MALICIOUS

PDF

4.2 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 19e351f4b3bbbc8c8d38f39e3bfc575d SHA-1: 265c4158e2e5d3f10c7465b58875525df2749c8c SHA-256: ee87182d90f181f5952d6add843f14323fabcc6c4b20099d8cd136897380c3f7

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_EVAL heuristic firing points to an eval() call within the decoded stream, and PDF_FROMCHARCODE suggests String.fromCharCode was used for obfuscation. The extracted artifact javascript_obj0013_001.js is likely responsible for executing malicious code, potentially downloading and executing a second-stage payload. The obfuscation makes it difficult to determine the exact nature of the payload without further dynamic analysis.

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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `ff2963f35e3212f86691b4e3be9798d2c2ef42c931a63f1762517e347651bed3`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3D2	13086 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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