PDF malware analysis — malicious · 1d97b1353511b119

MALICIOUS

PDF

45.8 KB

MD5: 1fd0701c063a5692565599a16cb588b9 SHA-1: e0d3e3ed1ca48aaa0c0861c8e49c363fdb11f719 SHA-256: 1d97b1353511b119270530ea0a002ec95dfd7635e3ebaf7504e8e054ece03dcd

98 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript that utilizes the Collab.getIcon method to exploit CVE-2009-0927 in Adobe Reader. The JavaScript is obfuscated and decodes multiple layers, ultimately executing an exploit stage. This indicates a clear intent to compromise the user's system through a known PDF vulnerability.

Heuristics 5

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. (identified after JavaScript deobfuscation)
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0008_000.js` `c85c478eb64ecfb4a8de91a080595ebf003f4578acf79896d28c659b884b458f`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1D3	9215 bytes
`custom_b64_stage_000.js` `7fb396b7b627991a1ddc9275e91502a231d9a035c299de4cf19ac619b808e5f9`	deobfuscated-js	custom Base64 decoded JavaScript layer 2 (PDF /JS object 8) at offset 0x8A7	1517 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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