PDF malware analysis — malicious · e7d35afcbd6e6fea

MALICIOUS

PDF

45.8 KB

MD5: 2c9f11fab2bac12d31e8ff3aa180ff30 SHA-1: be39f0024ded76b250b582a5326edd7f486e7018 SHA-256: e7d35afcbd6e6fea43f9b144780b9020c273612f37eef471c95dad5a55fc7978

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 CVE-2009-0927, a known vulnerability in Adobe Reader. The JavaScript is obfuscated and decodes a second-stage payload, which is then likely executed. This indicates a downloader or exploit delivery mechanism.

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` `308a86ac6d259b15bff68d843603da651cea346643e21e3eca75421e24d59e08`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1D3	9215 bytes
`custom_b64_stage_000.js` `cbaca604e8a4e4972e10b1b63a76f341dce9b07ff5c3650ae12a94fd7aeb5785`	deobfuscated-js	custom Base64 decoded JavaScript layer 2 (PDF /JS object 8) at offset 0x8A7	1517 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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