PDF malware analysis — malicious · 3f274b53d764b532

MALICIOUS

PDF

9.8 KB Created: 2009-10-04 13:45:55 Authoring application: Scribus 1.3.5svn (via Scribus PDF Library 1.3.5svn)

MD5: 6932be5cb8c8afa516f73a4b9eec8126 SHA-1: e84de8f11715c6397c91d3c8a2bf664168c72283 SHA-256: 3f274b53d764b532c62db7f740dc70670ca511ec7f07c0e9a94c94b1fab46942

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ClamAV detection 'Pdf.Dropper.Agent-7253163-0' strongly suggests a dropper functionality. The presence of JavaScript, particularly with unescape and String.fromCharCode calls, points towards obfuscation and likely the download of a secondary payload. The extracted artifact 'javascript_obj0013_001.js' further supports this. The document body does not provide user-facing content, reinforcing the idea that the file's primary purpose is malicious execution.

Heuristics 6

ClamAV: Pdf.Dropper.Agent-7253163-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7253163-0
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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` `0baf6318d942d235ce7ed177e7ef00741c1aec00952a1654770de579031bb5b8`	pdf-javascript-stream	PDF /JS object 13 at offset 0x1917	10774 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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