Malicious PDF — malware analysis report

Static analysis result for SHA-256 b492185b3e0f9caa…

MALICIOUS

PDF

73.3 KB
MD5: 30635991235ae0208fe9bbddb575671e SHA-1: a100686999f96fb00a7b1b37886e30aadf7c95ff SHA-256: b492185b3e0f9caaf8dacbbe050cd0a77d52f74097908179c1bf537485d6fb71
190 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The file is a PDF document that leverages the CVE-2010-0188 exploit targeting XFA forms within Adobe Reader. An embedded script payload was detected, indicating the document is designed to execute malicious code upon opening. The script's exact function is not detailed, but the exploit and embedded script strongly suggest it's a delivery mechanism for further malware. The embedded URL is likely related to the XFA template but is not directly indicative of malicious command and control.

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.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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.
  • 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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000034e.bin
59413f550fa633778dcf17c57f8ff930c8da7a1d4ec17ecfe09b4699ad32a9eb
pdf-embedded-script PDF raw stream script payload at offset 0x34E 74342 bytes