Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f5ddca6633aea23…

MALICIOUS

PDF

60.6 KB
MD5: d17f83359e97ba1b56848037a82c6a8d SHA-1: e0fb6d9e9983a79f6d2b577a3836ca59e7cc40b7 SHA-256: 8f5ddca6633aea231d4ab6f89f4f196c7265e064707994bad9f302bd7116b8be
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The PDF sample contains an XFA form that triggers the CVE-2010-0188 exploit, which is known to allow arbitrary code execution. The embedded script payload within the XFA form is the primary mechanism for this exploit. While specific URLs were extracted, they are related to XFA schema definitions and are not directly indicative of a malicious payload delivery.

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
e4c473f1ac4eb32469174cd02d1587fbf928ea788192886a237a588b1066a5d1		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 61300 bytes

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