Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7eaf17625af4624…

MALICIOUS

PDF

99.9 KB
MD5: 7232db95402b3a4ac4c37aa845fe95af SHA-1: 5919a0c6c48cf702fcae83e1b762b32c0f0dfc8f SHA-256: b7eaf17625af462428946e67a9757cf216ca0556d05f5cf9062432c6a4b90614
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious Attachment T1059.007 Command and Scripting Interpreter: JavaScript

This PDF document exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and LibTIFF processing. The critical heuristic firing indicates the exploitation of this specific CVE. The presence of embedded script payloads within the XFA form further supports the malicious intent, likely to download and execute a second-stage payload. The embedded URLs, while not directly malicious, are related to XFA and Adobe, suggesting the document's structure is designed to leverage these components for exploitation.

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
ea89ec51242d49cecdef136b2571834a865abc32652081197405d83862e10eee		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101560 bytes

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