Malicious PDF — malware analysis report

Static analysis result for SHA-256 c496d1f596d098e0…

MALICIOUS

PDF

99.7 KB
MD5: 9c6bdcbaf8c0838b35980cf16d0b76c7 SHA-1: 84e544049c6ead6224f8415282cd6e78e721211e SHA-256: c496d1f596d098e07ae30eb5dcf82ace4c171348afe10dfa60a697dcfe0da246
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious PDF

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader, leveraging XFA forms and embedded scripts to achieve arbitrary code execution. The embedded script is designed to download and execute a second-stage payload, although the exact nature of the payload could not be determined due to obfuscation. The presence of the CVE-2010-0188 exploit is the primary indicator of malicious intent.

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
6b817533767beb958b6d9494719d6a41d1ca1256f5ea80bcdf988f42e0204b58
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101339 bytes