Malicious PDF — malware analysis report

Static analysis result for SHA-256 48605dadc8cde0d7…

MALICIOUS

PDF

78.9 KB
MD5: c5318d6328c2aac0a89674cbcc62b0d5 SHA-1: 77153eb5cfbcabc9aa6254a444d27963026e45a2 SHA-256: 48605dadc8cde0d71ba53415384cea05825c1dc8f01f0cac6e729ecad35600e8
136 Risk Score

Malware Insights

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

The PDF file contains embedded XFA forms and scripts, and static analysis identified a critical vulnerability for CVE-2010-0188, indicating an exploit targeting Adobe Reader. The embedded script payload is likely responsible for executing the exploit. No specific malware family was identified, but the exploit delivery mechanism is clear.

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.
  • 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.
  • 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
c658c7d7595cc92863fffdbafd6516f280cc3a0103a5edc453a9221bbaf840b7		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80021 bytes

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