Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a5bd60fa4b05179…

MALICIOUS

PDF

99.6 KB
MD5: 27955918f925f31a1680a1a04d8edc95 SHA-1: e475c0adeffbd50d7346728d7a4234cb46a24635 SHA-256: 9a5bd60fa4b051797075376f47fe7edabc07361c0ad8dfb698d5e04ff85175ef
138 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. The heuristic firings indicate an embedded script payload within an XFA form, which is designed to execute arbitrary code. The embedded URLs are related to XFA schemas and Adobe, but their reputation is unknown or benign, suggesting they are not directly malicious IOCs. The script's exact function is obscured, but its presence within an exploit indicates a malicious intent to compromise the user's system.

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
eb1eb9abbdd23f08cbf7bbe40af0fe3dca7dbbb7e8363c6bd739aef9a18d972d		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101241 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.