PDF malware analysis — malicious · 4ebd61bfc9713f28

MALICIOUS

PDF

2.0 KB Authoring application: Python PDF Library 055 http072057057pybrary056net057pyPdf057

MD5: 64f40a82e2946c030c515b60b760da0b SHA-1: 699ec4dd6153cf3911ec0b18422fd0f82814130b SHA-256: 4ebd61bfc9713f287fbfe4cd88fb48e182deb865a33b5ffab6766e975eceb0ba

216 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_UNESCAPE. A critical finding of CVE-2009-0927 (Collab.getIcon) suggests exploitation of a known vulnerability. The presence of an extracted JavaScript file (javascript_obj0009_000.js) and the ClamAV detection (Pdf.Dropper.Agent-1828740) further confirm malicious intent. The script likely serves as a dropper to download and execute a secondary payload.

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)
ClamAV: Pdf.Dropper.Agent-1828740 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-1828740
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Suspicious extracted artifact high 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0009_000.js` `057f32b27b2e9c1277e9f0c81edc5482ffeb7edd09d09358583265d98a7614ec`	pdf-javascript-stream	PDF /JS object 9 at offset 0x2EE	1803 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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