Malicious PDF — malware analysis report

Static analysis result for SHA-256 004a5411d00c829a…

MALICIOUS

PDF

4.1 KB
MD5: 7df26fe55eaeb0c2f588bc4c8ebbc72b SHA-1: 96a78d25795608f63bfac437452f16a6e1230160 SHA-256: 004a5411d00c829ac2da03ef0378a343fe7c953608946ba5b68eb3bdcd3511af
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1566.002 Phishing: Spearphishing Link

The critical heuristic firing for CVE-2010-0188 indicates the PDF is designed to exploit a known vulnerability in Adobe Reader. The presence of an embedded file and script payload further supports the delivery of a malicious second-stage component. The ML classifier strongly reinforces the malicious nature of this document.

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 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/owN
    • 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
6e670786d6ccbab606da0bf5a391c76667ddc04256c1321ce79771e54589a711		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xEA 12473 bytes

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