Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4a967b4f9aa95e7…

MALICIOUS

PDF

99.8 KB
MD5: 352d8b401a670f43bb44c4fd087c6c1d SHA-1: 2b9b70c9ed63271bcf7008cef1d5f10a19806bbb SHA-256: c4a967b4f9aa95e741ae6ad37a4209dd5c2cb3bb5dcdc73dba64d39937c18650
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF T1059.001 Command and Scripting Interpreter: PowerShell

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader, specifically targeting XFA forms. The embedded script payload within the XFA form is designed to trigger this exploit. While no specific malware family is identified, the exploit's nature suggests it's a downloader or dropper for 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
e4ba21d2647dcd0731c8b07f56f00ae4417c8fce611565ac95055cf6a1b64103		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101471 bytes

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