PDF malware analysis — malicious · 2542e62399811511

MALICIOUS

PDF

16.9 KB

MD5: 2332ad5a20d86edb8c840d1b21793dec SHA-1: b0244be4d808090e393a17ec6e3a1260dbe855d4 SHA-256: 2542e62399811511af04fd7c507c18e2ee275569c15234c111e158deef6714c4

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF sample contains obfuscated JavaScript, including multiple eval() calls and string concatenations, indicating an attempt to hide malicious code. The critical heuristic firing for CVE-2009-4324 confirms the exploit mechanism. The deobfuscated JavaScript suggests the primary goal is to download and execute a secondary payload, likely from a remote source, which is a common technique for initial access and further system compromise.

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` `8b08e662c595bc05798a33ba7f54e31f86b1652e9082a1c86320bbfb549984f1`	pdf-javascript-stream	PDF /JS object 111711 at offset 0x18E	2998 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 6 long base64-like blob(s).
`javascript_obj111712_001.js` `8d15b28fa19818576c0e4da6849594cec22fb67f972c41c2ba18182e31b20bed`	pdf-javascript-stream	PDF /JS object 111712 at offset 0xD7A	11473 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 6 long base64-like blob(s).
`javascript_obj111713_002.js` `ef374e3c14b5a0ef68032d8ad61db14b185e68efa03834a023ffc7bbac6dcde4`	pdf-javascript-stream	PDF /JS object 111713 at offset 0x3A81	2258 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` `3af672dfcc1afa5bf58c9f0f873abaa25352c06c31913820aee3811b939271af`	deobfuscated-js	multi-marker percent-array decoded JavaScript at offset 0xD7A	1074 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` `67032520672104e686bc10583b57b8f00ee6cde9748dc8350b76e9c6009cbfb3`	deobfuscated-js	multi-marker percent-array decoded JavaScript at offset 0x3A81	171 bytes
`legacy_pdfkit_stage_002.js` `a5bd2564f305bad34ecd6855d8815faca3ca3db887a8fec13e98e3dfd5b09828`	deobfuscated-js	multi-marker percent-array combined decoded JavaScript at offset 0xD7A	1246 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.