Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fe09832a44435fe…

MALICIOUS

PDF

99.9 KB
MD5: 9f1c78ba53b5069e692d2294c1ebd0de SHA-1: 1a4a5ec379b0d9d16ac2838f748d2a5babb056f4 SHA-256: 8fe09832a44435fe52a05ab6db600df284ed1850c8827a9a3a5c3b8f2e1f6fbb
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious PDF T1059.001 PowerShell

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. The PDF contains embedded scripts within its XFA forms, which are designed to execute arbitrary code. While no specific malware family is identified, the exploit mechanism points to a malicious PDF designed for initial compromise.

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
29a81d916e6816c178baddebe2f906be4d4a1eac324707f38eb6cbf0eede2e4c		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101564 bytes

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