Malicious PDF — malware analysis report

Static analysis result for SHA-256 6acd8d768fe7d700…

MALICIOUS

PDF

129.1 KB
MD5: 72345bc79430879e1521a970a5637473 SHA-1: e1323e11dd31a70557fd52a56d7871afc621b926 SHA-256: 6acd8d768fe7d700b6c30ae8b4b3280d838167c37ff1a5ab10b8718006ae81c2
110 Risk Score

Malware Insights

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

The PDF file contains an embedded exploit targeting CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms and TIFF image parsing. This exploit is designed to achieve arbitrary code execution. The presence of an embedded file and the ML classifier's high confidence score further support its malicious nature. The benign URLs extracted are likely part of the XFA form structure and do not indicate malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/xci/1.0/
    • http://www.xfa.org/schema/xfa-template/2.4/
    • http://www.xfa.org/schema/xfa-data/1.0/
    • http://ns.adobe.com/xtd/
    • http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin
4039e9c998334ff031d82f5ca110045c516b3c5ea8785535b9ad33d41166a47b		 pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x4F 13560 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.