PDF malware analysis — malicious · dc3cde04f452b9d1

MALICIOUS

PDF

23.0 KB

MD5: 7bcc793271ac9c22e2173ba277f221ab SHA-1: b513b79d89a27f5a24e7dfb9297700292978cf43 SHA-256: dc3cde04f452b9d1b9fc9d5827c038e69ea250f2bbcc0ccbbeb4382bab2e1802

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript that leverages the 'Collab.getIcon' method, indicating exploitation of CVE-2009-0927. The JavaScript is heavily obfuscated, but static analysis reveals the use of eval() and unescape() functions, common in exploit kits. The script is designed to download and execute a second-stage payload, likely leading to further compromise.

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)
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111711_000.js` `1dc5782aaad26b0cce88e955f0a5495e41ab6e616fe2def39422b3f7508ab071`	pdf-javascript-stream	PDF /JS object 111711 at offset 0x18E	3751 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 5 long base64-like blob(s).
`javascript_obj111712_001.js` `1b95636149bc5ac84e0fb71c2037039efba826c7d0551685a878ead8e40b38be`	pdf-javascript-stream	PDF /JS object 111712 at offset 0x106B	17724 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 4 long base64-like blob(s).
`javascript_obj111713_002.js` `5e6b5725555e082e2944f0a225cd477288d97bcda0e9af3e72de7cf944ae297e`	pdf-javascript-stream	PDF /JS object 111713 at offset 0x55DD	1489 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 5 long base64-like blob(s).
`legacy_pdfkit_stage_000.js` `fe7ca5c1028e68542211c360d30953a4ec2fc8a09167f68f2d8f910da3a437ca`	deobfuscated-js	multi-marker percent-array decoded JavaScript at offset 0x106B	1520 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_001.js` `407624ceb11bdfcccd03817d5cc6229f3a3f8dfc15051e1567d07f2b81bcede8`	deobfuscated-js	multi-marker percent-array decoded JavaScript at offset 0x55DD	100 bytes
`legacy_pdfkit_stage_002.js` `17a1f21a31be9ab2abb975dba2fbae38cf70eca2adb43703452f3f01a611f757`	deobfuscated-js	multi-marker percent-array combined decoded JavaScript at offset 0x106B	1621 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.