Pdf.Dropper.Agent-7329241-0 PDF malware analysis — malicious · ff54839d36cb745f

MALICIOUS

PDF

6.7 KB Created: 2009-11-17 23:22:12 Authoring application: Scribus 1.3.5svn (via Scribus PDF Library 1.3.5svn)

MD5: 8200815edfc44a9479c03ff05c0eed0a SHA-1: 96ff6af8d8cee463516b0e661cf14b007f8ae613 SHA-256: ff54839d36cb745fc7b1a81d970f82b36588525d452cb67d84c4233d02c4e4bd

126 Risk Score

Malware Insights

Pdf.Dropper.Agent-7329241-0 · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell

The file was detected by ClamAV as Pdf.Dropper.Agent-7329241-0, indicating it is a known dropper. Static analysis revealed embedded JavaScript, including calls to unescape() and String.fromCharCode(), which are common obfuscation techniques used by malware to hide malicious code. The presence of these indicators strongly suggests the PDF's purpose is to deliver and execute a malicious payload.

Heuristics 6

ClamAV: Pdf.Dropper.Agent-7329241-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7329241-0
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_obj0016_001.js` `7f97d91c4f227474237aa2403ff69a498893024b6febf31ac17c9c1c0b783137`	pdf-javascript-stream	PDF /JS object 16 at offset 0xC9A	12459 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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