PDF malware analysis — malicious · c0ebe4642417ea67

MALICIOUS

PDF

12.5 KB

MD5: 32d467e5447ed2bbbd0de3061f2596a6 SHA-1: 3fe3da45ff9de08ac1bf0abe3eeee9e6275b40e8 SHA-256: c0ebe4642417ea67e20e7f51babfa3f5a4cab1501f2643d7a9bd13241627b0a3

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious Link/URL

The file is a PDF containing embedded JavaScript, identified as malicious by ClamAV and heuristics indicating exploitation of CVE-2007-5659. The JavaScript is likely designed to download and execute a secondary payload, as suggested by the presence of deobfuscated JS files named 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js'. The exact payload and download source are not directly extractable from the provided evidence.

Heuristics 5

Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Agent-36062 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36062
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_obj0007_000.js` `068944f8c011a88ab770b45c6de142b9305a1f515d410204d5eadd9ac2b5bfb3`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19B	373 bytes
`legacy_pdfkit_stage_000.js` `cfca70494fde027ec62d5b78c47752aeec3bab36394dd67b77f3f79efb4a8b72`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12346 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `01d9f7f59cfed82c07fc349fbdb75d3bfbe2987d2d61266878d2e12565478331`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5084 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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