PDF malware analysis — malicious · f3a60fed51d7cf98

MALICIOUS

PDF

21.2 KB

MD5: c200277597b6d5b1a22cebc0e90bd466 SHA-1: 683fe99d9518b6eb2e534f3354ebf185c3272af8 SHA-256: f3a60fed51d7cf9880f4f6df469ff08a3856fbbc790c0f8d29de3681cc65d58f

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF sample contains embedded JavaScript that utilizes the 'eval()' function and 'unescape()' for obfuscation, indicative of exploit delivery. The 'CVE_2009_0927' heuristic firing specifically points to the exploitation of a known vulnerability in Adobe Reader via the 'Collab.getIcon' method. The embedded JavaScript streams and deobfuscated scripts suggest the primary intent is to download and execute a secondary payload, leveraging the identified CVE.

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` `5abf50574ffff7476ed17be17277bc05653bb23fbe836abaeb76fa917397c01c`	pdf-javascript-stream	PDF /JS object 111711 at offset 0x18E	3594 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 6 long base64-like blob(s).
`javascript_obj111712_001.js` `5db2edc5cf56647a4df3e8ba8210cc436ef7e68df0f0664c92fafb85be226ddf`	pdf-javascript-stream	PDF /JS object 111712 at offset 0xFCE	15959 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 6 long base64-like blob(s).
`javascript_obj111713_002.js` `f55cc3114f08127ffebdd6434d1caba2c0a88b20f976aef555403915c02c1951`	pdf-javascript-stream	PDF /JS object 111713 at offset 0x4E5B	1554 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` `1412a09b263e0a64c28cc7f184247102cbe88e4b5ed6b84ed0c0c83087aaa08b`	deobfuscated-js	multi-marker percent-array decoded JavaScript at offset 0xFCE	1521 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` `031a2dc07132f2dcdca1f0cb2b3415165489a0de5ad4df17bc85bde0835c586e`	deobfuscated-js	multi-marker percent-array decoded JavaScript at offset 0x4E5B	104 bytes
`legacy_pdfkit_stage_002.js` `c4e283c73813f4a4a7ad6cd6b1f1346c244b52bbe5770147b70073644bd878ce`	deobfuscated-js	multi-marker percent-array combined decoded JavaScript at offset 0xFCE	1626 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.