PDF malware analysis — malicious · 3669039bcf51c7e6

MALICIOUS

PDF

2.3 KB

MD5: e22db66ac613fdcd3fdcfc7228a0d1ee SHA-1: 73b1e3fdae91db6e6b18d6d88c6dd704c1a45b5a SHA-256: 3669039bcf51c7e6bd4ff984c92e5181a63a344aecafbb8199ffc0d4657c8b6c

280 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.001 Malicious Link/Document: User Execution: Malicious Link T1204.002 Malicious Link/Document: User Execution: Malicious Document

The PDF file contains embedded JavaScript that leverages CVE-2009-0927 and CVE-2008-2992 vulnerabilities. The 'eval()' function is used on obfuscated JavaScript streams, indicating an attempt to execute malicious code. The presence of multiple JavaScript-related heuristics and ClamAV detection strongly suggests this PDF is designed to exploit the reader and likely download further malicious content.

Heuristics 8

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (identified after JavaScript deobfuscation)
util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Agent-12288 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-12288
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0009_000.js` `abfe1af256bb9f3c8c693abe853af7b853fd56796224eea239740112a083a4ef`	pdf-javascript-stream	PDF /JS object 9 at offset 0xBC	20550 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `1fcf1e8d4bcb1d768496357ba0196f8add483b134577ca38f7b1698798d047a7`	deobfuscated-js	split-join delimiter stripped JavaScript at offset 0xFC	5625 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 11 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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