PDF malware analysis — malicious · ea5b7c3e9747c7c6

MALICIOUS

PDF

2.2 KB Created: 2008-08-06 01:42:27 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: c83516438f984693acb1cd0bce075d5d SHA-1: f7aa25e131a0ec8cf9035c52cc5c6f0e4557a1a0 SHA-256: ea5b7c3e9747c7c6bec50b339b1919617e43432ee7476454da26314b44edd19e

218 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript and triggers an OpenAction, indicating it's designed to run code upon opening. Critical heuristics for CVE-2009-0927 and a ClamAV detection (Pdf.Dropper.Agent-7319474-0) confirm its malicious nature. The embedded JavaScript stream, identified as 'javascript_obj0013_001.js', likely facilitates the download and execution of a secondary payload, a common dropper behavior.

Heuristics 7

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (matched in decompressed stream)
ClamAV: Pdf.Dropper.Agent-7319474-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7319474-0
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
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.
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` `535ef1efdf1973386937d39e738c7b1075e484ccd88ee70bf5baf89716440ee7`	pdf-javascript-stream	PDF /JS object 13 at offset 0x36C	2057 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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