Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9878299f4fa751f…

MALICIOUS

PDF

99.7 KB
MD5: 9fb510c97d3821919f7ed778c74b897f SHA-1: e2afde4dd5f67065264718d88417b08b053f9464 SHA-256: c9878299f4fa751faa9e820d8e4953864288fde6790332ad4c445b3b6fb30296
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. This exploit likely leads to the execution of arbitrary code. The PDF contains embedded script content within an XFA form, which is a common delivery mechanism for such exploits. No specific malware family was identified, but the exploit's nature suggests a downloader or dropper.

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
20470e0b407446a843dca6c51a9dc921c59f312eb65f3fffb5d8bd9bfe3536a5		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101360 bytes

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