Malicious PDF — malware analysis report

Static analysis result for SHA-256 2564df9e4e0d125f…

MALICIOUS

PDF

4.1 KB First seen: 2013-06-07
MD5: 5463e235dcea1f4406e1cc5eac361f28 SHA-1: ed097f0218afe18d8888bd4a232b5678bfee47a7 SHA-256: 2564df9e4e0d125fbf3ab7fff188c9a9dd746d57346af98f484051d49bfd8e8e
110 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file exhibits characteristics of malicious intent, specifically the presence of an embedded script payload. This payload is likely intended to execute malicious code upon opening or interaction with the document. The XFA form and embedded file heuristics further support the suspicious nature of this PDF. Without further deobfuscation or analysis of the embedded script, the exact payload and delivery mechanism remain unclear.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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 script payload in PDF stream info 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 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/1.0\ In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.5/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xEA 12895 bytes
SHA-256: 72dfcf3e4cdbc3f206c1fd1fd7527030bbdd5309f86f1adf0062b122339a1346

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