PDF malware analysis — malicious · 96fe5a81f968d2fc

MALICIOUS

PDF

12.3 KB

MD5: a8372051939dfb47f6ac1c2b07f03cde SHA-1: 33ae94da12dd2574544a4b0c7a3efba6821b7679 SHA-256: 96fe5a81f968d2fc60c4790b5581344c0f6811c664a5714db1e1741a5b4d6b69

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, identified by multiple heuristics including CVE-2007-5659, which is known to exploit vulnerabilities in PDF viewers. The file also contains deobfuscated JavaScript streams, suggesting it's designed to download and execute a second-stage payload. The ClamAV detection further confirms its 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` `115e9308d27976cd7fd514c39ad0487ada3a794a9f5dd91fbf61d9503486b41e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	11947 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `ac65ca83fa87c655dc9ca6728eeaa3bee0f2b96d96346326bf8e40cb5fb87383`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4877 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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