PDF malware analysis — malicious · ced9953592b94007

MALICIOUS

PDF

3.2 KB

MD5: bca06bb758a64d263b985eda7bdd50fd SHA-1: be767642ed6d53dbd1f206cb928df8a5bbd3ba8a SHA-256: ced9953592b940075f009b38dbe91844cc3214081eefd78ea69db4c04e8f6a61

218 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious Link

The PDF file contains embedded JavaScript and triggers an OpenAction, indicating it's designed to execute code upon opening. The critical heuristic firing for CVE-2009-0927 (Collab.getIcon) strongly suggests exploitation of this known PDF vulnerability. The embedded JavaScript stream, identified as suspicious by static triage, likely facilitates the download and execution of a secondary payload, consistent with a dropper's behavior. The ClamAV detection further confirms its malicious nature.

Heuristics 7

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. (matched in decompressed stream)
ClamAV: Pdf.Dropper.Agent-7306084-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7306084-0
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0009_000.js` `2fc606a491b9a3e9aac06240d31b2de57ee8ec290be60c067ccf029ebf984f17`	pdf-javascript-stream	PDF /JS object 9 at offset 0xD6	2357 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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