PDF malware analysis — malicious · 8dbb0debd82cb9ca

MALICIOUS

PDF

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

MD5: f89db95ab274b77046e5755af5e3b75b SHA-1: 2d3d93d1a85bc4cbaf3c480497fddeb62de49cb9 SHA-256: 8dbb0debd82cb9ca4c5e4a3468742cee977daba0927801b3016edfdbb1fd581c

228 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged by ClamAV as Pdf.Exploit.Agent-35541. Static analysis revealed embedded JavaScript streams that utilize eval() and unescape() functions, indicating obfuscation. A launch action was also detected, suggesting the PDF is designed to execute arbitrary code. The ML classifier strongly supports the malicious verdict. The primary intent appears to be the execution of a second-stage payload via the embedded JavaScript.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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)
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_obj0027_000.js` `8ddb70b691bf269a8d95a34ce0749c631caa11522de300c1c79065096eab8de3`	pdf-javascript-stream	PDF /JS object 27 at offset 0x21C1	62474 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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