PDF malware analysis — malicious · f0f341350ee85463

MALICIOUS

PDF

4.1 KB Created: 2008-09-24 19:47:56 Authoring application: Adobe

MD5: 2ffc2383fdac6a86ab18779ccf0b6c3f SHA-1: fe452250ec14562d27c0232a282918717596dc1f SHA-256: f0f341350ee85463a2015c9bbe446e1481231de6c8b583e411f88e36a773384d

340 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file contains multiple critical heuristic firings indicating exploitation of CVE-2009-4324, CVE-2009-0927, and CVE-2007-5659. These vulnerabilities are leveraged through embedded and obfuscated JavaScript, which is further decoded using 'eval' and 'unescape' functions. The ClamAV detection as 'Pdf.Dropper.Agent-7322427-0' strongly suggests its role as a dropper for additional malicious content. The primary attack vector appears to be exploiting these specific PDF reader flaws to achieve arbitrary code execution.

Heuristics 9

media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324

PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (identified after JavaScript deobfuscation)
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)
ClamAV: Pdf.Dropper.Agent-7322427-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7322427-0
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0006_000.js` `561adbfb2d943672e5a1cb58b86073936f7300f4021d7e4d36f5e0718603d645`	pdf-javascript-stream	PDF /JS object 6 at offset 0xC4E	96 bytes
`javascript_obj0016_001.js` `3006f0e8d72b07f545026aa24046f2004419b5a0d09f659042a107f410ca0b58`	pdf-javascript-stream	PDF /JS object 16 at offset 0xCE7	127 bytes
`javascript_obj0026_002.js` `4088cdc5ffa6dc2c9c53420d50d1692fb9c62d19d59bf0fcf080d9efdc3fa4ac`	pdf-javascript-stream	PDF /JS object 26 at offset 0xDA2	42 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `1cd54eacbcd41eab1dcd6c15c079855903623143c4f7e5b7d08299be22f8785f`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x205	6405 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 12 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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