Malicious PDF — malware analysis report

Static analysis result for SHA-256 59fcd6e8de8cb820…

MALICIOUS

PDF

79.4 KB
MD5: 055405588f169304485039b34ba6270d SHA-1: 05f48a62aaf36921d7d8ce14ea62d00f6c0c70ad SHA-256: 59fcd6e8de8cb820783fce779c5cb7767396376b110fc2a93def45a6002ce2dc
136 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF and XFA forms. The critical heuristic firing indicates that a decoded XFA payload was matched from a raw stream, suggesting the document is designed to trigger this exploit. An embedded script payload was also detected within an XFA form, further supporting the exploit execution. No specific malware family could be identified, but the primary attack vector is the exploitation of this known Adobe Reader vulnerability.

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
64e2a464dd9a28f735a919d2e8409de6bf21b52b320c3e632e0755e8cffb4321		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80581 bytes

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