Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cc7e07b0afbf30a…

MALICIOUS

PDF

50.7 KB
MD5: e4fc2523b97ddd1303808f7245fd8aeb SHA-1: 84d65cdd22cb631dcaa88f95e806ceab7b6cb922 SHA-256: 4cc7e07b0afbf30a6a0f2cdf5d24249c38f9a16b65b372eb53cbbc3334a8db5a
198 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains embedded content and triggers a critical heuristic for CVE-2010-0188, indicating an exploit targeting Adobe Reader. The ClamAV detection further confirms its malicious nature. The embedded script payload suggests the execution of a secondary stage, likely to download and run further malicious code.

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.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.
  • 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
a15dcfa29ec55d3ad3a960be4294664d2594a1d2aa3fdf0aed90b1ff66fc5544		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 51109 bytes

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