PDF malware analysis — malicious · d82f583d6f1573f0

MALICIOUS

PDF

12.1 KB

MD5: a2e210d434921405b2924b6b4c79b939 SHA-1: 480476970c9eb5d539ff37e10c587384254a3d97 SHA-256: d82f583d6f1573f0d1fb5ce5d0453cab4d6e62220c3b1d68d61b29c74180d8d1

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The critical 'CVE_2007_5659' heuristic specifically points to the use of 'Collab.collectEmailInfo' for JavaScript execution, a known exploit technique. The file also contains deobfuscated JavaScript artifacts, suggesting a multi-stage execution process. The overall pattern indicates a PDF-based exploit designed to run malicious code.

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` `52742ce6797002a02d87d43315e923584d70795d956604340e165494ef9be04c`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12401 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `974c0b6cda28045e662db97fa27baaec2e2ddf6973b28cb4a90b82c9e8eeecd9`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5051 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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