Malicious PDF — malware analysis report

Static analysis result for SHA-256 371d3588aa7442e1…

MALICIOUS

PDF

99.9 KB
MD5: 3b5d01e8ae42d40f3cb53f5bda94b419 SHA-1: 35a4833c033da3a8d48961b51dfd5635f0bc5eaf SHA-256: 371d3588aa7442e10cd128b3b169b370331446b922d809e1b1467be9cbb2bb02
136 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA forms. This indicates an attempt to execute arbitrary code upon opening the document. The presence of embedded script payloads within XFA forms further supports this attack vector. No specific malware family could be identified.

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
16242a8e452fece4c8de2c266d59edc93af46758f90c98964d131c2a99dee3e6		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101516 bytes

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