Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2279c0c6080bc3c…

MALICIOUS

PDF

46.0 KB
MD5: 3e5d8060c826829a25c0b0700468e008 SHA-1: fea3716f5c85a6d3eea7c891c43ed07708fef976 SHA-256: e2279c0c6080bc3cab2ff79545fd35397f2e347ea5781e0b81782acbba37e314
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File Execution: User Execution: Malicious File T1027 Obfuscated Files or Information

The PDF file contains obfuscated JavaScript that exploits the CVE-2009-0927 vulnerability in Adobe Reader. The embedded JavaScript, after deobfuscation, is designed to download and execute a secondary payload, indicating a downloader or initial access stage of an attack. The specific exploit mechanism and the lack of further payload details prevent a more precise family attribution.

Heuristics 5

  • 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)
  • 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.
  • 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.

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0008_000.js
58a05c15e0b318744d6915313279bd0ab93987490abedfc29b4ec71850524f80
pdf-javascript-stream PDF /JS object 8 at offset 0x1D3 9263 bytes
custom_b64_stage_000.js
2574efb33b6d84146d621e88e5bda2367e260633dbdc841c3d7581d81cd5ecca
deobfuscated-js custom Base64 decoded JavaScript layer 2 (PDF /JS object 8) at offset 0x8A7 1529 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 3 eval/decoder/string-building token(s).