PDF malware analysis — malicious · 800a95244ae30d8e

MALICIOUS

PDF

9.1 KB Created: 2009-05-16 09:44:35 Authoring application: jGS2mqfWaJ3 (via CG9yHqu4NE)

MD5: 3cdbaee0c533809e43c6b815884763ff SHA-1: 38443098698d658c132a97629428abe2cd805c5e SHA-256: 800a95244ae30d8e336404524139dc4950678a1bc074e439f541a22e0308739a

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The JavaScript stream utilizes eval() and unescape() functions, suggesting obfuscation and dynamic code execution. This pattern is commonly used to download and execute further malicious content. The extracted artifact 'javascript_obj0007_000.js' is also flagged as suspicious due to script obfuscation indicators.

Heuristics 5

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_obj0007_000.js` `d050026a8325d021e3549f9b632db84bd47e1373761e9081fa5b44664287d6eb`	pdf-javascript-stream	PDF /JS object 7 at offset 0x23F	8036 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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