PDF malware analysis — malicious · eb432b79d43a4de4

MALICIOUS

PDF

11.7 KB

MD5: 1a9e98701ad6650f4541a7b8b7ac3fc0 SHA-1: 2e1102b2c563e7085db804cfe16f6919a5bd676c SHA-256: eb432b79d43a4de41d482601111b9b871c0074e0f9d7fbf9e9270f4868cfea79

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2007_5659 heuristic indicates a known exploit technique involving JavaScript execution within PDF documents. The presence of deobfuscated JavaScript files suggests the script's purpose is to download and execute further stages. The extracted JavaScript files are treated as IOCs.

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` `0e23272465fc62738c3d2795f69b6d476685f3404a53f30099a1b2a40ca53804`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	11956 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `4c7dc0f19a9f86db633c86d923cb465434f7f77ebeed02457f4d3f7ca827bbe5`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	4918 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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