Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea249acb2ddf9128…

MALICIOUS

PDF

12.1 KB Created: 2009-11-11 19:43:84 Authoring application: PDF Library 10.7.8 (via PDF Library 7.3.8)
MD5: 2a087ea3c10e86b3a77dfd68bca5741d SHA-1: dc58eb0d325a1b18b95c6ff79cb2372d3ec2617e SHA-256: ea249acb2ddf9128849042da419bd3cd658084935b42c904c85f67849b2625ee
220 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.001 Malicious Link T1059.007 JavaScript

This PDF document is malicious, exploiting CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992 through embedded JavaScript. The exploit leverages specific Acrobat JavaScript API sinks like Collab.getIcon, Collab.collectEmailInfo, and util.printf. The embedded JavaScript, particularly in 'legacy_pdfkit_stage_000.js', is designed to download and execute a second-stage payload, although the exact nature of the payload is not discernible from the provided static analysis.

Heuristics 7

  • 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)
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • 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.

FilenameKindSourceSize
javascript_obj0007_000.js
6d1530fa2865cde12333af85eac92a321f68fb0332e1f34eb67fdcb3652665e0		 pdf-javascript-stream PDF /JS object 7 at offset 0x268 38149 bytes
legacy_pdfkit_stage_000.js
8cc9856a072b9af9307ed2428a0c768a01b6032b9cbc95d6b5f0bd53268c4e43		 deobfuscated-js numeric array subtract-key decoded JavaScript at offset 0x268 9868 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).

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