PDF malware analysis — malicious · cc0dd601c4cd47a4

MALICIOUS

PDF

12.3 KB

MD5: e538168b00fee1c2fc930799163f76d9 SHA-1: c3cf963748b5a00710b6bb634c1e32f5a53b7bae SHA-256: cc0dd601c4cd47a44981454a4697c81e5747d3ab29393cba6b5113fa3fdeb908

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.001 Malicious Link/URL

The critical heuristic firing for CVE-2007-5659 indicates the PDF exploits a known vulnerability using JavaScript. The embedded JavaScript streams, particularly 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js', are indicative of a multi-stage exploit. The ClamAV detection further confirms the malicious nature of the file. The primary attack vector appears to be leveraging the PDF reader's JavaScript engine to execute malicious code, likely for downloading further stages.

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` `629a74e5d5347f358a1ccfd8e93307a5cec07763d5a3a45ede9505c0e43c1c3d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12478 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `8cea7509ca4cd7f0bf53d5aea786953a31c8da2929f85186b32779cc1fe79986`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5204 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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