PDF malware analysis — malicious · e2ee538155aed6cd

MALICIOUS

PDF

11.7 KB

MD5: 0ebda39ccfcbc3bbb62c0818428529a0 SHA-1: 3306d90fa2d492fad5488ac51deb1a3e4a2034af SHA-256: e2ee538155aed6cd4f710da536eed9f4cd0ccffe88d2912eacaecd50b58b95bb

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, identified by multiple heuristics including CVE-2007-5659. The ClamAV detection 'Pdf.Exploit.Agent-36065' further confirms its malicious nature. The embedded JavaScript, found in 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js', is likely responsible for downloading and executing a second-stage payload, a common technique for initial access.

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-36065 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36065
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` `9c67560e8c63b720885d3efc1627b844b86a6ec08e99e5b65a22eae832045756`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19C	431 bytes
`legacy_pdfkit_stage_000.js` `d07c89e1ed4f7187d917a2d0eac42a130ab43161d0ccf5f1fda483a2134a27aa`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12012 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `6f1c97df7026cc474732a06a243ca24936b37ee1586106128f977bd6e0fd35ed`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	4934 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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