PDF malware analysis — malicious · 330bffd2e928ba89

MALICIOUS

PDF

11.6 KB Created: 2009-02-19 14:45:49 -02:00 Authoring application: Writer (via OpenOffice.org 3.0)

MD5: 14cbbf23e967fd59ea0bbaaf7a19c005 SHA-1: e18d3842367cd137fca2570199f9a55837f30b69 SHA-256: 330bffd2e928ba89c8dc0dc42f8738dac30b97443855a7db138aa191aa91f902

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, indicated by multiple PDF_JAVASCRIPT and PDF_JS heuristics. A critical ClamAV detection of 'Pdf.Exploit.Agent-35541' strongly suggests a known exploit. The presence of PDF_LAUNCH and PDF_EVAL heuristics, along with the mention of 'Script obfuscation indicators' in the static triage, points to the execution of malicious JavaScript. This script is likely designed to download and execute a secondary payload, a common technique for initial access.

Heuristics 7

ClamAV: Pdf.Exploit.Agent-35541 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35541
Launch action high PDF_LAUNCH

PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
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_obj0027_000.js` `6f3e40214aa37f16a2ab297410451e664e02abb8331c897b11bd8e1fe08772cb`	pdf-javascript-stream	PDF /JS object 27 at offset 0x21C1	15608 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.