Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff249e9baf4dcdc2…

MALICIOUS

PDF

99.9 KB
MD5: 6162f8f8489277e394217d539d33857a SHA-1: 9aa35f932f6b8d1b15ce754237aa9b4694dac5b2 SHA-256: ff249e9baf4dcdc292cd48230d4a75a89097e78f9007cd36b3c6d31651417c5e
136 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the presence of an embedded script payload and an exploit for CVE-2010-0188, targeting Adobe Reader's LibTIFF component. The XFA form contains executable script, which is a common technique for delivering exploits. The script is heavily obfuscated, but the critical heuristic indicates it attempts to leverage the CVE-2010-0188 vulnerability. This exploit likely leads to the execution of a second-stage payload.

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
c41cd68809a501a4eb201796da1d2287784252a7656698503e59fa490402907f		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101540 bytes

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