PDF malware analysis — malicious · aa751b4115c661e0

MALICIOUS

PDF

12.0 KB

MD5: 14cce853029d44cf500f6d9c679680e5 SHA-1: 7c3bf54d6f97cf9b2ec8379218d530e76a070dbe SHA-256: aa751b4115c661e042e87dfa3baae29e0f932d34f7204225b553cf481b5dfd42

138 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript, identified by the PDF_JAVASCRIPT and PDF_JS heuristics. Critical heuristics indicate the exploitation of CVE-2007-5659 via JavaScript, which is further supported by ClamAV detecting it as Pdf.Exploit.Agent-36062. The presence of deobfuscated JavaScript files suggests the script's purpose is to download and execute a secondary payload. The extracted artifacts and exploit details point to a malicious PDF designed for exploitation.

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` `5a3b4c578cd8b93611f2cfda6f88189d01e5f62b150b9429c506eddcd4cad334`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	11726 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `4f1aec5d2dcfd689c7fb01b69e072e79f7f0dc96a49c6f1a282dbbd8ac5b67b8`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4793 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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