PDF malware analysis — malicious · e30541caf70251eb

MALICIOUS

PDF

12.5 KB

MD5: cef3432b0520533802bdd24816081c7f SHA-1: 4f25221a1b99e527e3015f51217d0b28cd01829f SHA-256: e30541caf70251eb124e1fb6ed7f96b919016c366ddb99f489e65943b458e0d9

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 identifies the use of 'collab.collectEmailInfo' to execute JavaScript, a known method for exploiting PDF vulnerabilities. The presence of deobfuscated JavaScript files further supports the execution of malicious code. The overall intent appears to be the exploitation of a PDF reader vulnerability to run arbitrary 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-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` `65e42860ddc0fc7788cca976d3fe653873f0c4791ad2d2957d43d8ff27d6c0c1`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12103 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `882aeca6744f1e259b8c2b2954b441a389bb6ddd5655ab47a6926062c0d9324d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4990 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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