PDF malware analysis — malicious · 9bdf30b140d958a4

MALICIOUS

PDF

45.8 KB

MD5: 2c88ce2b870468ce50746d45a4c85e83 SHA-1: 1296424ccf97941730e133994f079e1de0f700c3 SHA-256: 9bdf30b140d958a43e5f4e964ec9f88534bed0c05fd9fa482cea42ad9a7387d9

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell T1059.003 Windows Command Shell T1059.007 JavaScript

The PDF file contains obfuscated JavaScript that exploits the CVE-2009-0927 vulnerability in Adobe Reader. The script decodes and executes a second-stage payload, indicating a downloader or initial access mechanism. The specific family is not identifiable from the provided evidence.

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` `cf409bbe44572de9933cc58c29093f7ce1f97ea037a611a9f03e453feb0b67e3`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1D3	9215 bytes
`custom_b64_stage_000.js` `6c4ae3bb0a56ec1fa3358428143b225eba0d2fcc0394c68fe5e90dadeaa30181`	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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