PDF malware analysis — malicious · ccf052b2d26bbc95

MALICIOUS

PDF

11.9 KB

MD5: ae959257a6523f2e028cb48d1cc89ee1 SHA-1: 2b8918c2996b066de88a13f1622daf738503fc05 SHA-256: ccf052b2d26bbc95404bba8daada3adc3c02b20a16eb3373eca23e501d1e8c85

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1059.001 PowerShell

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2007-5659, indicating an exploit attempt. The presence of deobfuscated JavaScript files suggests the execution of malicious code. This code likely downloads and executes a second-stage payload, as indicated by the nature of PDF exploits and the extracted artifact names. The ClamAV detection further supports the malicious classification.

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` `7325874af225b79ded7f4c33e5a54afed644707f145104555b1a75e61bc3c0cb`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12140 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `3dab401fe9b7b7d411860bd1f7eb39064d4762eed6bf3e6517cf7e2e11b20877`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5040 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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