PDF malware analysis — malicious · 409412680806eb23

MALICIOUS

PDF

22.0 KB

MD5: 16e1ec527eddbc769997320ab2404393 SHA-1: 6e960a001e5ccb1a54d3ae3602e95554a1f3b143 SHA-256: 409412680806eb2319026ece23d8b557c835c594eb774fb16efa6e66913e4f82

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript that utilizes eval() and unescape() functions, indicating obfuscated code execution. The critical CVE-2009-0927 heuristic firing points to the use of the Collab.getIcon() sink, a known method for exploiting Adobe Reader vulnerabilities. The embedded JavaScript is designed to download and execute a second-stage payload, as evidenced by the deobfuscated JavaScript stages.

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` `11beb8f09c3ec3bac3301bf3794dbb74c9c0ab6217e3571fc086d13bd2a36d2c`	pdf-javascript-stream	PDF /JS object 111711 at offset 0x18E	3749 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` `c4684f27eb6595590998a73759eda3452076c187fdc191dac25be8d59bf21a7e`	pdf-javascript-stream	PDF /JS object 111712 at offset 0x1069	16514 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_obj111713_002.js` `53d36fdf27bf5fd413e5c592259d4ae4545622e3338bd64462f23340cead2ecd`	pdf-javascript-stream	PDF /JS object 111713 at offset 0x5121	1668 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` `b4ed18c83b4a06fbdb27521c212fdd7616e7442bcf4263767172287271f2a4c4`	deobfuscated-js	multi-marker percent-array decoded JavaScript at offset 0x1069	1523 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 0x5121	100 bytes
`legacy_pdfkit_stage_002.js` `8825ce1899fdb5255dd7a0ccaf76b497ef174e68e89464aabae842b448cde1da`	deobfuscated-js	multi-marker percent-array combined decoded JavaScript at offset 0x1069	1624 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.