PDF malware analysis — malicious · 9592d52387062c0d

MALICIOUS

PDF

11.8 KB

MD5: 094b495091ac6fff5eb5cf0fb76a7cc0 SHA-1: 05549d0903b0e5f6df06a61de470882c31479849 SHA-256: 9592d52387062c0d572499cb26b50b6c362565448ab0c616ecb24be8ba04cc90

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript that leverages the CVE-2007-5659 vulnerability. The heuristics indicate that this JavaScript is used to execute further code, likely to download and run a second-stage payload. The presence of deobfuscated JavaScript files suggests a multi-stage infection process.

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 1 related finding 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` `eb4c39024911854a682c4803193ca1a5913fcd616a862ddca7f1d810841adbc5`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12237 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `0c5a33ff4924443a65cf740f21314e9191c88b4c76f85e4e9085c246ccc52c8b`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5077 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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