MALICIOUS
398
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious Link
T1204.002 Malicious Link: Malicious File
T1059.001 Command and Scripting Interpreter: PowerShell
T1059.003 Command and Scripting Interpreter: Windows Command Shell
T1059.007 Command and Scripting Interpreter: JavaScript/TypeScript
This PDF file is malicious, leveraging multiple critical vulnerabilities (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659, CVE-2008-2992) to execute obfuscated JavaScript. The embedded JavaScript, identified as 'page_word_xor_stage_000.js', acts as a stager. Its primary function is to decode and execute further malicious code, likely downloading and running a second-stage payload. The ClamAV detection 'Pdf.Exploit.Agent-36080' further confirms its malicious nature.
Heuristics 10
-
media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324PDF 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_0927PDF 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_5659PDF 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_2992PDF 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.Agent-36080 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-36080
-
OpenAction trigger high PDF_OPENACTIONPDF has an /OpenAction — code runs automatically when opened
-
Page-word XOR JavaScript eval stager high PDF_PAGE_WORD_XOR_EVAL_STAGERPDF JavaScript enumerates rendered page words with getPageNthWord/getPageNumWords, extracts encoded byte fragments, XOR-decodes the stage with char-code helpers, and evals the result. This is an old exploit-kit staging pattern and is not normal document JavaScript.
-
JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
-
Embedded JS stream low PDF_JSPDF 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_TRIAGEOne 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_obj0017_000.js3a3d2175aecab14c4528ee8c645d0be3fe7d5d84d8f26ee4a33298698de66ade |
pdf-javascript-stream | PDF /JS object 17 at offset 0x1A4B | 4503 bytes |
page_word_xor_stage_000.js2ede04a1393aa9fa9394bc1d5b3288f106359ea256276b590bba06ad819a4be7 |
deobfuscated-js | page-word XOR decoded JavaScript (decompressed, key=0xCC) at offset 0x7F5 | 3070 bytes |
|
Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 4 eval/decoder/string-building token(s).
|
|||
Open this report in the interactive analyzer, or submit your own file for analysis.