Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf31bf44d5130ebd…

MALICIOUS

PDF

100.0 KB
MD5: 923fadf5b8f734098231f27023e2bf4d SHA-1: b58f72a95094240ee3251fa8581975d94ec14b5e SHA-256: cf31bf44d5130ebdd415e498584d1fb547c7638f60e5af857421a7067d255a05
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 document exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and TIFF image handling. The heuristic firings indicate the presence of an embedded script payload within an XFA form, designed to leverage this exploit. The script's intent is to download and execute a second-stage payload, although the exact nature of the payload cannot be determined from the provided evidence. The embedded file is likely the exploit itself.

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
3fb583f9135e345bbe21cb0a7ccbb60565aabe69ece14f560cfcdcc120f144a9		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101641 bytes

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