Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b347dcbb80d26b7…

MALICIOUS

PDF

99.8 KB
MD5: 4d294a853c289ac01fb6148d19f352ea SHA-1: 9f722980ed1d6619e3b8a84c9f4347b6f124a40c SHA-256: 8b347dcbb80d26b7c72cb234324536aedefbde0ae7080551a5a0e82d7a9704bb
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment

The sample is a PDF document that exploits the CVE-2010-0188 vulnerability in Adobe Reader. This vulnerability is known to be used for delivering malicious payloads. The PDF contains XFA forms and embedded scripts, indicating an attempt to execute code upon opening. The embedded file and script payload heuristics further support this. The exact nature of the payload is not discernible from the provided evidence, but the exploit itself is the primary attack vector.

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
c2b6c55ba694ddd4da22361aa57b2afec6c956332cc9a2a939082754026941b9		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101483 bytes

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