PDF malware analysis — malicious · efc0e0ef9e4a5cb9

MALICIOUS

PDF

16.6 KB Created: 2009-05-01 21:21:45 Authoring application: ghjkSFghjkCPx (via afdsdgf)

MD5: 243be2bf9b95abfe59608bee963118ef SHA-1: ebd19dd7900ddabc148156d467ffc054d668a734 SHA-256: efc0e0ef9e4a5cb98e5d99eaf2df158defa1da672c7e61bdcf12a90dc58a831a

280 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File T1059.001 Command and Scripting Interpreter: JavaScript/JScript T1059.007 Command and Scripting Interpreter: JavaScript/JScript

This PDF document is malicious, leveraging multiple critical vulnerabilities including CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992. These exploits are triggered via the OpenAction mechanism and embedded JavaScript, which uses eval() to execute obfuscated code. The script's intent is to decode and execute further stages, likely leading to arbitrary code execution.

Heuristics 8

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)
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `d427b9daa4f61252c20cecd0cd935496e638988a98e0f33668e4f0309558ab6a`	pdf-javascript-stream	PDF /JS object 7 at offset 0x21C	15813 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).
`javascript_obj0007_001.js` `522a4a52be14010d03a1257fb2d7782a9db432e7f93e85697ff8edc8f6bd03fc`	pdf-javascript-stream	PDF /JS object 7 at offset 0x21C	15539 bytes
`numeric_charcode_stage_000.js` `13aa6dfdbc376c01839e95b5fb800b6e348d1a87c5a2ffc95a112c3942255b1e`	deobfuscated-js	numeric char-code string decoded JavaScript at offset 0x22B	4746 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 9 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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