PDF malware analysis — malicious · 9dda2aeef51ba6eb

MALICIOUS

PDF

46.3 KB

MD5: ec5cc8466bc46c22b03f5ee0ed62000e SHA-1: 7303a01e61f7bdf6611d102a8562b1c32eac19bb SHA-256: 9dda2aeef51ba6ebe36802974665f57226a5bab7471b13a16029f2989de22a25

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript that utilizes the Collab.getIcon method to trigger the CVE-2009-0927 vulnerability in Adobe Reader. The JavaScript is obfuscated and appears to decode further layers of malicious code, ultimately aiming to download and execute a secondary payload. The presence of exploit indicators and the specific CVE targeted strongly suggest a malicious intent.

Heuristics 5

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)
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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` `44eadf88a762056c7b60915a7a8218accceb9cd66b5678083cbbca0fd814c658`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1D3	9319 bytes
`custom_b64_stage_000.js` `422d55b202b0ef3da34e22b9b767f9bdeba5f8efd875e48d63d2a04bdcdb7582`	deobfuscated-js	custom Base64 decoded JavaScript layer 2 (PDF /JS object 8) at offset 0x8A7	1541 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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