Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6dd0a48b0c530b6…

MALICIOUS

PDF

99.7 KB
MD5: fd5c0a90bd8eb2a8a30957e37f367a8c SHA-1: 80a4e369ecc8ae7ccf5e0bca0cda0527f36ed019 SHA-256: e6dd0a48b0c530b6442674a79ce16cf74adb21190bd6152c5a3edd80c5bdbecd
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1559.001 Component Object Model Hijacking

This PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The critical heuristic indicates the exploitation of this specific CVE, likely leading to arbitrary code execution. The presence of embedded scripts within the XFA form further supports the malicious intent, suggesting the execution of a payload. No specific family could be identified, but the attack pattern is clear.

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
13f1dd838b6e36a3c84b079e89373f1dbfd7393e3be1f4776dbd80ca9d27b2a2		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101349 bytes

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