Malicious PDF — malware analysis report

Static analysis result for SHA-256 26805108cc93e5d1…

MALICIOUS

PDF

16.1 KB
MD5: febc5170d4e6e18497643c802dd8b556 SHA-1: 3a8e1f41987d2aa0bb8005c2647b47a8000aeeca SHA-256: 26805108cc93e5d1b83fddeb1a25f2326ffd0a270e3d42d0437f47152cfefbd3
148 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded XFA form and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. This exploit is designed to download and execute a second-stage payload. The embedded script payload further supports the malicious intent, likely facilitating the execution of the exploit.

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-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000354.bin
66e58926722a5c46215c0bc7f0d88aed5578e189dae5b3380b41dc9bfff48ddd
pdf-embedded-script PDF raw stream script payload at offset 0x354 15752 bytes