Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f54fda708db13d8…

MALICIOUS

PDF

3.9 KB
MD5: 3b3f7adf510625be95f5b90894a61339 SHA-1: e5df22495997864c706c0bfcc80b85f87ce268cb SHA-256: 3f54fda708db13d88ab66b0bbb753a682a61588898f337b4887b1fedaf0b41b4
356 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and triggers multiple critical heuristics related to known PDF exploits (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659, CVE-2008-2992). These exploits likely facilitate the execution of the embedded JavaScript, which is designed to download and execute a secondary payload. The ClamAV detection and the suspicious extracted JavaScript artifact further support its malicious nature.

Heuristics 8

  • 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.Agent-36895 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36895
  • Suspicious extracted artifact high 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.
  • 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.

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0014_000.js
58e2a4b2c8c9c8f8b586fd0dd40f415392cbf124a9a98070944a7436d2435be6		 pdf-javascript-stream PDF /JS object 14 at offset 0xBDD 722 bytes
info_stride_js_000.js
893e8bac2ec2022a3035531b4c9cd33cb8fdba3546363da484b3cc81cb9cbc69		 deobfuscated-js PDF /Info fields via stride 6 2851 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 4 eval/decoder/string-building token(s).

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