Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1b6e41435f494ac…

MALICIOUS

PDF

18.0 KB
MD5: 582685b92f113e9db8e6fd8a7e42a16e SHA-1: 4ce6e46568e687f02ac0543882864bd60de33acc SHA-256: c1b6e41435f494ac0b8cc32bf708bd446823d6efff887f12ac1422181f476656
168 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1566.001 Phishing: Spearphishing Attachment

The sample is a PDF document that leverages XFA forms to exploit CVE-2010-0188 in Adobe Reader. This exploit is designed to execute a secondary payload. The presence of an embedded URL and the ClamAV detection further support its malicious nature. The exploit targets a known vulnerability for client-side execution.

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • ClamAV: Pdf.Exploit.Agent-36828 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36828
  • XFA numeric character-table eval stager high PDF_XFA_NUMERIC_EVAL_STAGER
    PDF XFA initialize script reads numeric form data from rawValue, maps the values through a short character table, and evals the reconstructed stage. This is an exploit-kit staging technique even when the final decoded layer remains encoded.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.xfa.org/schema/xfa-template/2.5/