Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b1e847cd03684f…

MALICIOUS

PDF

99.7 KB
MD5: 77ead8699160244dadc2133beb2c876f SHA-1: 942e08b19ddf947218efff9185a6857244033aec SHA-256: 62b1e847cd03684fe8d01551e730b554ea1261d6fd2d699c79c8824c03df353b
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. This exploit is designed to execute arbitrary code, which is often used to download and run additional malicious payloads. The presence of embedded script content further supports the execution of malicious actions. The benign URLs found do not detract from the exploit's malicious nature.

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 low 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/
    • 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
4dc87f1d6e455f32d712fdf873122ec30c07e252fb8bbdb8cd60149372fb9f2b
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101382 bytes