PDF / .COM malware analysis — malicious · b7153b591ee036e1

MALICIOUS

PDF / .COM

15.9 KB

MD5: d459f5d7081cff5fa1bb19accb401555 SHA-1: 087c4461483396f60c742f8152c852b6b5a21060 SHA-256: b7153b591ee036e1b0471cc13df230ba43bbfa8c0d7c6a51f9bef81f45fbd4ec

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.001 Malicious Link T1071.001 Web Protocols

The PDF sample contains obfuscated JavaScript, including multiple calls to eval() and unescape(), which is a common technique for exploiting vulnerabilities and downloading further malicious content. The critical heuristic firing for CVE-2009-4324 indicates a specific exploit targeting the media.newPlayer API. The deobfuscated JavaScript stages suggest the intent is to download and execute a second-stage payload, typical of exploit kit delivery mechanisms.

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. (identified after JavaScript deobfuscation)
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111711_000.js` `0570c015bd6e46994a21abb9a1b960c4cfdb7261c870bed04f3dbab2750c468a`	pdf-javascript-stream	PDF /JS object 111711 at offset 0x18E	3177 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 5 long base64-like blob(s).
`javascript_obj111712_001.js` `d853964557093d9e344091540c6a87717834bc7f95558a41401b42ce2bf94ac2`	pdf-javascript-stream	PDF /JS object 111712 at offset 0xE2D	10051 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 4 long base64-like blob(s).
`javascript_obj111713_002.js` `7be74066ea22507bd7145dd2da4c40b89c9b708b642b1b1806e8335c6ed7d3c8`	pdf-javascript-stream	PDF /JS object 111713 at offset 0x35A6	2479 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 5 long base64-like blob(s).
`legacy_pdfkit_stage_000.js` `27920ea41782e3de7681655436ad162917290e5898d36303bc383088d7d66d85`	deobfuscated-js	multi-marker percent-array decoded JavaScript at offset 0xE2D	1075 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_001.js` `60ce0810278f2f60129e80b52c3a58c78f1a086360ab99fe755422fe7d4df2f2`	deobfuscated-js	multi-marker percent-array decoded JavaScript at offset 0x35A6	173 bytes
`legacy_pdfkit_stage_002.js` `220f02d0aa0eab16f5cbc691af34ad04a91e1cd4d725c8768db24f3f243286a2`	deobfuscated-js	multi-marker percent-array combined decoded JavaScript at offset 0xE2D	1249 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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