Malicious PDF — malware analysis report

Static analysis result for SHA-256 d961903573b26e7c…

MALICIOUS

PDF

50.8 KB
MD5: ff96b841a7ba1af91b77a1a1071619a9 SHA-1: 884c11085b6661b9ddaa44ad5d10d9f81a644dd4 SHA-256: d961903573b26e7c1a8f7dd20f9eaf874f7c5a295a7e8b03f3aca36aa27d2050
156 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, indicating it's designed to execute arbitrary code. ClamAV also detected it as Pdf.Exploit.Agent-6136306-0. The embedded file and script payload markers further support the malicious nature of this document.

Heuristics 6

  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
ac7ccaae9197903347a581be383d0e474f15fa68ac5d439bbc6625ccea2721c9		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 51223 bytes

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