PDF malware analysis — malicious · 9f8e2ec75b0318b6

MALICIOUS

PDF

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

MD5: 46cc54b24d2e5bc132e4551b098adee2 SHA-1: 2119c2624c46341ea2e2203bbda27eeae0683b58 SHA-256: 9f8e2ec75b0318b6cf466f38b01bc9dabd2cc00fd0011877a712d023d9bdc2d3

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The script is obfuscated and uses String.fromCharCode, suggesting it is intended to download and execute a second-stage payload. The extracted artifact 'javascript_obj0013_001.js' is also flagged for script obfuscation. Due to the obfuscation, the exact payload and its destination could not be determined.

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` `7d0b4a6a10af237f9904d1c1c2c6f17df956f7486a7ea69311e0bb12cca367c7`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3D2	12572 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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