PDF malware analysis — malicious · 3b72aef098f09ce9

MALICIOUS

PDF

2.8 KB

MD5: 1e75dbc62dfc0a12e438819076d8d1bf SHA-1: ff020eef968916c9c4e6268cea15a7bdddddf6e8 SHA-256: 3b72aef098f09ce910b6e30ae40a1daa648822b1bb9c1a0f8639aa5058acfd69

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link T1204.002 Malicious File

The PDF file contains embedded JavaScript and triggers an OpenAction, indicating an attempt to execute code upon opening. The critical CVE-2009-0927 heuristic firing confirms the exploitation of a known vulnerability related to 'Collab.getIcon'. The embedded JavaScript, though obfuscated, is likely responsible for the malicious payload delivery. The file's purpose is to exploit this vulnerability to achieve arbitrary code 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` `1ec9cbb6bd3b54ff8f0e0010fc5083aa4cc6d9424358b5176dbcbaa69783e56c`	pdf-javascript-stream	PDF /JS object 9 at offset 0xD6	2112 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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