Malicious PDF — malware analysis report

Static analysis result for SHA-256 90c83f8460efcaef…

MALICIOUS

PDF

79.7 KB
MD5: 53c7f30dedcad0c293c13d4349f3dd36 SHA-1: 1e809d48de7585e0af026c22a9a0d305c68a8920 SHA-256: 90c83f8460efcaef7ca52675ca22360a7d813f3bb79d915c36234911b7920efe
196 Risk Score

Malware Insights

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

The PDF file contains embedded content and triggers the CVE-2010-0188 exploit, indicating an attempt to execute arbitrary code. The presence of XFA forms and embedded scripts further supports this. The ClamAV detection confirms its malicious nature. The embedded URLs are likely related to the XFA form functionality but are not directly indicative of malicious activity.

Heuristics 7

  • 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.
  • XFA form contains executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
  • 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
07af9d69cda0965dd16fe5638c5adb1c09c58a2156ffcffabae71a31a35f41ea		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 80840 bytes

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