PDF malware analysis — malicious · dc0aae84ed8b6768

MALICIOUS

PDF

12.2 KB

MD5: cd24dd13004f79df05f6d4e288d1ab77 SHA-1: 94638324adbb25c34f6f23d67f556227048b393d SHA-256: dc0aae84ed8b676870edc060f28f8c334397569f10b808aae5d3a9c03454330f

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, identified by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE-2007-5659 heuristic indicates the exploitation of a known vulnerability via JavaScript, likely to download and execute a secondary payload. The presence of deobfuscated JavaScript files, legacy_pdfkit_stage_000.js and legacy_pdfkit_stage_001.js, further supports this. The ClamAV detection of Pdf.Exploit.Agent-36062 confirms the malicious nature.

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` `48d9f9d03727cf3f29526e30d89f1a9f19c613ff4a51213ecc1dbb0dbed79173`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	11795 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `44abb5bf33c8e0fcb4c65295335051dc6c51538855fd7cb306856169943e8510`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4875 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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