PDF malware analysis — malicious · aa8fd427414354aa

MALICIOUS

PDF

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

MD5: 2701060a3fd62f91deb530d4c62d7c41 SHA-1: 1998f2c4938c167a6561449dae1a40c0404c1e51 SHA-256: aa8fd427414354aa37d045955ce7fcd52f05c968af53707526a5f5b3583dcec3

90 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF document contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of a high-severity PDF_EVAL heuristic firing suggests that the JavaScript is likely obfuscated and uses an eval() call to execute arbitrary code. The ML classifier also strongly flags this PDF as malicious. While the specific payload is not directly visible due to obfuscation, the techniques used point to a malicious JavaScript execution attempt, likely to download and run a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
JavaScript action low 1 related finding 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` `12d8b99b738b53d2df5ab3eae50875afc54480db8aee0b79212ad8ed2f0333e1`	pdf-javascript-stream	PDF /JS object 13 at offset 0x36B	6604 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.