PDF malware analysis — malicious · 511de2ad484984d3

MALICIOUS

PDF

9.4 KB Created: 2009-05-17 21:14:39 Authoring application: LNPv0J921rujDN (via bBtJoHS8)

MD5: 6830abddd7a716b2b4f8a93cfabc01dd SHA-1: 0e33cc5973c28a41afd586dbce27e2f44c4f66d6 SHA-256: 511de2ad484984d3f106a5de15ed61109e764f593c0e9340304dd0c9ab82f91a

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1027 Obfuscated Files or Information

The PDF file contains embedded JavaScript, which is obfuscated using eval() and unescape() calls. This script is likely designed to download and execute a second-stage payload. The presence of these obfuscation techniques and the embedded JavaScript strongly suggests a malicious intent to compromise the user's system.

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` `11b14a1f0adc64c0005446dce8dfb80730f67c7caa88c5b0cc9a16fd0ba21969`	pdf-javascript-stream	PDF /JS object 7 at offset 0x247	8330 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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