PDF malware analysis — malicious · c0e5cfa6d141c4ae

MALICIOUS

PDF

1.3 KB

MD5: c0a77705b5e45a4da3b6a0a6a80f476f SHA-1: ae0a26bab08202b26f573443f19ad5dc4ddaf30a SHA-256: c0e5cfa6d141c4ae82a4dc6f5f6e58ddbe0ce1285484790952dd914ec73af350

218 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript and triggers an OpenAction upon opening, indicating an attempt to exploit vulnerabilities. Specifically, the 'Collab.getIcon' function firing points to CVE-2009-0927, a known vulnerability in older Adobe Reader versions. The presence of JavaScript and the exploit trigger strongly suggest this PDF is a dropper designed to execute a malicious payload.

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-7217540-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7217540-0
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_obj0003_000.js` `ae0c4a338323fc82a3a10c559dd2f273831b878e125405ecebea838cba7cfaa1`	pdf-javascript-stream	PDF /JS object 3 at offset 0xAA	2244 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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