Malicious PDF — malware analysis report

Static analysis result for SHA-256 378918a137b5dab9…

MALICIOUS

PDF

99.6 KB
MD5: 89f81e3a7ec8a29d2a3e42085899e7c8 SHA-1: e1af4c08bc8454059a312556ee8467ab6c99bb9c SHA-256: 378918a137b5dab949bb97f03af87b3f1ef15ccef65c05bd7ff893bd0c20a80a
136 Risk Score

Malware Insights

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

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, specifically targeting the LibTIFF component within XFA forms. The heuristic firings indicate the presence of an embedded script payload within an XFA form, designed to be executed upon opening the document. This exploit likely leads to arbitrary code execution, allowing for further malicious actions.

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
5d0374f490c7bf4261d1953c06fba0a46fd73f77b4f951e4eb359663cf0e2285		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101220 bytes

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