Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf0d519f10e5d88a…

MALICIOUS

PDF

78.6 KB
MD5: 0ca16fc0a1515c517efed240407ffbf9 SHA-1: 7f14580e095c5bea37f2072964669ac0e9af3387 SHA-256: bf0d519f10e5d88a46ad9fb4455b807bbc594c939df048c3ef8839b00fd6e5b6
136 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

This PDF document is malicious, leveraging the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The XFA form contains an embedded script payload, which is indicative of an exploit designed to execute arbitrary code. While no specific family is identified, the exploit's nature suggests it's a downloader or dropper for a second-stage payload.

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
05277922ff0f4fd3939b1352e55cff8fa017fe8385c84aee3b9e4b9399623546		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79777 bytes

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