PDF malware analysis — malicious · 508224b0005063b7

MALICIOUS

PDF

2.8 KB

MD5: 35cbc65f8ceb0ae304557ce27fc371ab SHA-1: c70c0c2a5f89fe79e6a207291064c79d0023b32e SHA-256: 508224b0005063b711f27ea7cacfffc6b3b5c14686d3e5fbe897e2836aaac2d6

158 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.007 Command and Scripting Interpreter: JavaScript

The PDF file contains embedded JavaScript and is configured with an OpenAction to trigger execution upon opening. The critical heuristic firing for CVE-2009-0927 indicates exploitation of a known vulnerability via the Collab.getIcon method. The embedded JavaScript, named javascript_obj0009_000.js, is obfuscated and likely responsible for further payload delivery or execution.

Heuristics 6

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)
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` `52210cde9099d4e8e8a8c7c5440941ecf65eed39579a6635299f9269eb02ba6f`	pdf-javascript-stream	PDF /JS object 9 at offset 0xD6	2077 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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