Malicious PDF — malware analysis report

Static analysis result for SHA-256 444e607a20567184…

MALICIOUS

PDF

78.9 KB
MD5: d10a939422d04bdb351d56a92ecc04d5 SHA-1: 397e3e91b5d2061f1e283f4dfba6faf0de0d14b5 SHA-256: 444e607a205671849d0de8546575a4744f970567773b5a1180d95be5f053eaf5
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains an XFA form with executable script, triggering the CVE-2010-0188 heuristic for Adobe Reader. This indicates the file is designed to exploit this vulnerability upon opening. The embedded script payload is the primary mechanism for executing the exploit, likely leading to a second-stage download or further malicious activity.

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
338d1b50ff0a289e9922073480b2bcb9d21822e6d30cea79b6a2d612e60ae771		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80096 bytes

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