PDF malware analysis — malicious · 2e262876ac1c0ca3

MALICIOUS

PDF

11.9 KB

MD5: a0f6c42f89bbd1101dc770ebe87b40e1 SHA-1: f0b37655616d1b515f62b07e0a1a1f0bca6474d9 SHA-256: 2e262876ac1c0ca37cd9068c7e269b1cc587e9cd23c4dcdc312f5f50523b13e9

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by multiple heuristics, including a critical finding for CVE-2007-5659 related to the 'Collab.collectEmailInfo' function. This function is known to be used in PDF exploits to execute arbitrary JavaScript. The deobfuscated JavaScript streams suggest the execution of further malicious code, likely a second-stage payload. The file is classified as malicious by ClamAV with the signature Pdf.Exploit.Agent-36065.

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` `82f415f06ba6a740475350e36e511654e43ea89dccbe46b2bbf9cbb745828865`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12173 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `6d10cd6ffc890795ef4c2820eeb99b4cfeabc32775be5af573edf661636d4627`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	4968 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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