PDF malware analysis — malicious · fae0b4309cd09375

MALICIOUS

PDF

180.2 KB

MD5: 2f7f7dbfd08b023028de5c7fa8f2f224 SHA-1: 74ec83a8808f27c2c712fb499e096fbe1eb964ba SHA-256: fae0b4309cd09375af61e3849a13748a67132c1a55b57a19c12a11a65f6d71c6

260 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that leverages multiple critical vulnerabilities including CVE-2009-0927 (Collab.getIcon), CVE-2007-5659 (Collab.collectEmailInfo), and CVE-2008-2992 (util.printf). These exploits are designed to execute arbitrary code, strongly suggesting the file's purpose is to download and execute a second-stage payload. The presence of multiple exploit indicators and ClamAV detection reinforces this assessment.

Heuristics 7

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)
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)
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-36114 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36114
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_obj0008_000.js` `25a479c1ed1f8181d7be510c72f8d51d6415c3a3b897db8ac780f3f1f315a745`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	2687 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_000.js` `c0fd6ea2629c10bc3cb24d00ffdcc5e57b56e3eac6aafb06243f3d2748f20c37`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xC9A	20111 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 11 eval/decoder/string-building token(s).

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