Malicious PDF — malware analysis report

Static analysis result for SHA-256 c42195ca2d6e4433…

MALICIOUS

PDF

53.0 KB
MD5: 17ab59fc450c15c0928ad5c3a128bcb2 SHA-1: 96295f9690f72ec114164f46b453aaba98d0460e SHA-256: c42195ca2d6e443301e922b6a937407b60474ba1e339e8e6cdfd55b8342d28b8
196 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. Heuristics indicate an embedded script payload within an XFA form, suggesting it's designed to execute arbitrary code upon opening. ClamAV detection further confirms its malicious nature as Pdf.Exploit.Dropped-93. The embedded file and script functionality point towards a downloader or dropper.

Heuristics 7

  • 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.
  • ClamAV: Pdf.Exploit.Dropped-93 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-93
  • 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
5b9a0fbd58152ac1aaf49eec780393b4d18c51d8b663b78259843af5c745e7ca		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 53561 bytes

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