PDF malware analysis — malicious · ff01f9f5cba4e13a

MALICIOUS

PDF

16.1 KB Authoring application: sli

MD5: 2e0a3a3fae1d525f8987605e067167b3 SHA-1: 62c5d2ffd147324c88e34abf9a35c6bb7dbd1427 SHA-256: ff01f9f5cba4e13ab98b883430f982f446f165e8b2a25f728e20b6f4c03ea076

360 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/Shell Script Execution T1204.002 Malicious Link/URL T1190 Exploit Public-Facing Application

The PDF file contains embedded JavaScript that utilizes character-table decoding and eval functions, indicative of an exploit stager. Critical heuristics identify multiple Adobe Reader vulnerabilities (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659, CVE-2008-2992) being targeted by this JavaScript. The primary function of the script is to exploit these vulnerabilities, likely to download and execute a secondary payload, as suggested by the 'Dropped' component in the ClamAV detection name.

Heuristics 9

media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324

PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (identified after JavaScript deobfuscation)
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)
Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Dropped-91 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-91
Large character-table JavaScript eval stager high PDF_JS_LARGE_CHAR_TABLE_EVAL_STAGER

PDF JavaScript contains a large numeric index array, a short character table, an indirect eval sink, and a long loop that reconstructs a hidden stage. This is an exploit-kit staging technique even when the recovered first stage is still encoded.
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_obj0076_000.js` `f06d6dc97e991c45c2c38a20f51054ce4f9e515164061bd928ec3bffd49944d4`	pdf-javascript-stream	PDF /JS object 76 at offset 0x3FE	15237 bytes
`array_char_table_stage_000.js` `801d15919ab9ea0e96c8c19e8df758d85424accc170b74b1d0d3721f48f704fa`	deobfuscated-js	array character-table decoded JavaScript at offset 0x42A	3842 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 11 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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