PDF malware analysis — malicious · c8ee4ae8b9bac075

MALICIOUS

PDF

12.2 KB

MD5: 2dad07318024e79fc84b6b3062f23c1e SHA-1: 27326db3ae257c8bf957d13efcc0de41dfc44756 SHA-256: c8ee4ae8b9bac0755e5370ad633bf5b1e32cd92bcc4a0e54b794744a9bb47ee2

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059.001 PowerShell T1059.007 JavaScript

The PDF file contains embedded JavaScript that exploits CVE-2007-5659 using the Collab.collectEmailInfo method. The heuristic firings indicate that this JavaScript is obfuscated and likely responsible for downloading and executing a secondary payload. The presence of deobfuscated JavaScript files further supports this, suggesting a multi-stage attack. The ClamAV detection confirms the malicious nature of the file.

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` `1d884b4b806548daf0cd2ed7d20849fcba62c5fd3c12443dca968d4d176b6df8`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	11990 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `c20a6fcb669fad1ae3406d40872acb50b6bdffcaed00c52f01e80ae21113fe47`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4846 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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