PDF malware analysis — malicious · f7d580c88e053998

MALICIOUS

PDF

6.4 KB

MD5: 1d1c61c7fe8dfdfc1a6490048303fc52 SHA-1: b82ed4d952ef35e3e5911bb2926aaf6cdb748d4e SHA-256: f7d580c88e05399835b533106dbb801dded2b794f5d02cdad9d22f1aa61e2ea8

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains embedded JavaScript, which is obfuscated and uses the unescape() function. The critical heuristic firing indicates exploitation of CVE-2009-0927 (Collab.getIcon). This suggests the document is designed to exploit this vulnerability to execute arbitrary code, likely leading to the download and execution of a second-stage payload. No specific malware family could be identified.

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)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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_obj0006_000.js` `4f76724be956f0e915f18d97143b6e81dced0a126ea9df2672e2071accac3aae`	pdf-javascript-stream	PDF /JS object 6 at offset 0x205	5277 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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