Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc30f4960dd7faa4…

MALICIOUS

PDF

100.1 KB
MD5: 8c550effd753e58753e74322bf14db6a SHA-1: 57fb7b5d5560d2649c151d5c4e6d9b6656258430 SHA-256: dc30f4960dd7faa4640f50811aeb1144c305bd2ed308c52816c96898a7cca0db
136 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF XFA image parsing. The heuristic firings indicate an embedded script payload within an XFA form, which is characteristic of exploit delivery. The embedded file suggests a secondary stage payload is likely downloaded and executed.

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
5512ecb518487717a90ff04a11bb277e313f21660217753b2a56eae9092429af		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101711 bytes

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