PDF / .PHP malware analysis — malicious · d17a9e0896baeef8

MALICIOUS

PDF / .PHP

1.4 KB

MD5: 8693afaf202546f598dae2fb35dcb0ea SHA-1: 181b81351fe2e6f19385be2a0afc5bf9a13087b5 SHA-256: d17a9e0896baeef8b4f769bfdbe09008246591dbf71f238f34a985c4a206a00d

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical CVE_2009_4324 heuristic firing suggests exploitation of a known vulnerability related to media player objects. The embedded JavaScript, particularly in javascript_obj111712_001.js, is obfuscated but likely responsible for downloading and executing a secondary payload, as suggested by the 'unescape()' call and the suspicious extracted artifact. The file type is listed as PDF/.PHP, which is unusual and may indicate a delivery mechanism.

Heuristics 5

media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324

PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (matched in decompressed 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111711_000.js` `ed214d008ca7f8fad0affc792159f2b30ce479dc90c5348e0751937c74ebe0c2`	pdf-javascript-stream	PDF /JS object 111711 at offset 0x197	291 bytes
`javascript_obj111712_001.js` `ee460d5c27775edeeeabdfc684b37917688a6c1ac056d3da365f00480d8f5bb7`	pdf-javascript-stream	PDF /JS object 111712 at offset 0x2B2	966 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj111713_002.js` `d2f98bec78aa096efa5aca99b701d5e6b9a8e2cf728fb7e79bf248862bacf14b`	pdf-javascript-stream	PDF /JS object 111713 at offset 0x514	70 bytes

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