Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eb196b9308167d0…

MALICIOUS

PDF

80.2 KB
MD5: 370bc3d6754f92cc86515032201de421 SHA-1: 815aced330c5bb1e8cc6b38bc3ccf5fc48a7a182 SHA-256: 9eb196b9308167d006ee2f4907a66bfdfc4352a5d0f4b2a4484eeef7f116e480
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF T1059.001 Command and Scripting Interpreter: PowerShell

The sample is a PDF file that exploits CVE-2010-0188 via an XFA form. The embedded script payload within the XFA form is likely responsible for executing arbitrary code. The presence of XFA forms and embedded scripts are strong indicators of exploit delivery. No specific family could be identified, but the attack pattern is consistent with PDF-based exploit delivery.

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
f52c783ad9a8da64235f8b145274b13d9f3380c3b1fdbacb1f023277e23f9123		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 81341 bytes

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