Malicious PDF — malware analysis report

Static analysis result for SHA-256 b71b1ab42447349a…

MALICIOUS

PDF

99.6 KB
MD5: b1452d5b207c58011ab2e7a9164bca1b SHA-1: c16d6367621d1883518a6c6981565e7b871f2261 SHA-256: b71b1ab42447349af29f1dc756cba3bc10fbc8841026b3db61a00024fcb3a4e0
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

This PDF file is malicious, exploiting CVE-2010-0188 via its XFA form to deliver a payload. The critical heuristic firing for CVE_2010_0188 confirms the exploit attempt. While no specific family is identified, the exploit and embedded nature suggest a downloader or dropper. No scripts were extracted, limiting further analysis of the payload's intent.

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
68442b12f2df847a8fd0e0f8085b255909dd00d77df64050278005b24be838a3		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101273 bytes

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