Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a00dcda0e15a874…

MALICIOUS

PDF

79.7 KB
MD5: 887861d8970b50f88a5ab843ea500a9e SHA-1: 46a9eeb94035c2b3c95f74dbffb951352e1c77d7 SHA-256: 0a00dcda0e15a874c89beef79f4ffbd40ab2318fe95602bbabb1308a125f6363
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms, to achieve code execution. The presence of an embedded file and the ML classifier's high confidence further support its malicious nature. The attack likely relies on spearphishing to deliver this malicious PDF to victims.

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
25b7e284be167f03ecad78b9939981263c8f837c2372732bee965b5a87714fa5
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80845 bytes