PDF malware analysis — malicious · ae46f8ab608caaea

MALICIOUS

PDF

46.1 KB

MD5: 099fb0959a211bdb28b683d27cc208ea SHA-1: f99b91e93c5636f04375679540591e4d69f54c7c SHA-256: ae46f8ab608caaea96d9a862396afd3f49b0396150cfa7f698a41c064bc84583

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious File Execution

The PDF file contains embedded JavaScript that leverages the Collab.getIcon method to exploit CVE-2009-0927 in Adobe Reader. The JavaScript is obfuscated and appears to decode further layers of malicious code, ultimately aiming to execute a second-stage payload. The exploit is delivered via a PDF document, a common technique for distributing malware.

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` `a28abdf186480408035cb41791a5f44909a2f75946c71ce76682af8c03397102`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1D3	9291 bytes
`custom_b64_stage_000.js` `bc38270ba94a92cf00287effe71e5aca5a436d84a2cdcb78211584bfeddbae0f`	deobfuscated-js	custom Base64 decoded JavaScript layer 2 (PDF /JS object 8) at offset 0x8A7	1535 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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