PDF malware analysis — malicious · ec34d88c8afe2bdf

MALICIOUS

PDF

45.8 KB

MD5: e4520727635a750b6ff28df7299fa8d5 SHA-1: b1406361288e9751d21fbbcae1f9ecb1d6de71c6 SHA-256: ec34d88c8afe2bdfe999b53f7b85fb568d835fa4214ff647953c74e6c9294b92

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link

The PDF file contains embedded JavaScript that leverages the CVE-2009-0927 vulnerability in Adobe Reader. The JavaScript is obfuscated and appears to decode further layers before executing an exploit stage. This indicates the file's primary purpose is to compromise the user's system by exploiting a known vulnerability.

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` `248705c48f130e0a672b6dad144affd7d7c93c6a7bb616e210374ef5dacb2d60`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1D3	9215 bytes
`custom_b64_stage_000.js` `59abc5b42b38f0c776cdacb43e2890d44f4751931c28687e5c1543185aaec620`	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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