Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a7db871e751a5a9…

MALICIOUS

PDF

66.0 KB
MD5: affedae1694df4355bfa01db8842c767 SHA-1: b8f5e57d905e0d6d2491e6ebf20bcdd421620025 SHA-256: 1a7db871e751a5a9a8594f6ec6f572a66b7d260c87761700cbae8ff1939642df
136 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit, indicating it is designed to compromise the user's system upon opening. The exploit targets Adobe Reader's handling of XFA forms. No specific family could be identified, but the attack pattern is consistent with a malicious document designed for initial compromise.

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
5c57490ed3eeec1906af40be09a3bf361822805b8c67a10893a0003a1ae0fab6		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 66790 bytes

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