Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7a1d1034f86d633…

MALICIOUS

PDF

122.4 KB
MD5: 119c3342aa7ec8ec6ee0e899351b803a SHA-1: 2c3f16428e7892c6aa9c169c641e339116e5b0e3 SHA-256: c7a1d1034f86d633e30e004a9c2bfba717b7a653edc75fff692cd2b5fd4e667a
196 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: PowerShell

This PDF file exploits CVE-2010-0188 in Adobe Reader via an XFA form. The embedded script payload, though obfuscated, is indicative of a downloader attempting to retrieve and execute a secondary stage. The embedded file and XFA script firings strongly suggest this exploit is used for initial compromise, likely leading to further malware deployment.

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.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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
35b8c1c0c1bf2e8b457cff1190fc6c83bcca6b938cdeb2dc8d7a839c1768025e		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 124590 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.