PDF malware analysis — malicious · bcb9247489e4f906

MALICIOUS

PDF

12.0 KB

MD5: ce4929e3ff76b8ac775111e1b1745856 SHA-1: 18bc56abfbad6ce26604c7ba8062cac7dc7628e9 SHA-256: bcb9247489e4f9060e6a42c84d1daf829cbc187b44147d0b9c8c2edb3d37a453

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 points to the use of Collab.collectEmailInfo with JavaScript that is likely designed to exploit this CVE. The file also contains deobfuscated JavaScript artifacts, suggesting a multi-stage execution process. The overall intent appears to be the exploitation of a PDF vulnerability to run malicious 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-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` `86b9757ff8f820bfa9c9e99d09bd0d18b351fe897aceccc75d7c0542b6a2d7ad`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12330 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `f2993dab5116e6825a3201f69c09674fd9e177742da951cc132a1dd5c45319fd`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5063 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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