Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc06308210c17a03…

MALICIOUS

PDF

79.3 KB
MD5: 829e77d1948f965d4e9ec7a13a99f123 SHA-1: d93f14fdc95b7b3aa464baeb1ccf48024bc445ca SHA-256: bc06308210c17a03abb7b79869a5f17a66d8ee2b4642eb20acd65013161e3488
136 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and LibTIFF. The critical heuristic firing indicates that the PDF contains a decoded XFA payload designed to exploit this vulnerability, leading to arbitrary code execution. No scripts were extracted, and the document body was truncated, but the exploit itself is sufficient to classify the attack pattern.

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
f73854e0097c9a4922f881cb82db5b47d687830ac395a7ab6aac74ce2197c5cd		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80412 bytes

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