Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2149899b89c2e33…

MALICIOUS

PDF

4.1 KB
MD5: e43daba7ff244b0f26f8e55639c0371f SHA-1: 7dcb8364363581fc9a072e06a579d37e52ebd406 SHA-256: d2149899b89c2e33c6a6b46ef4581363d8f2df7e5bc543bffdf884078c01c072
128 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggers a critical heuristic for CVE-2010-0188, indicating exploitation of a known Adobe Reader vulnerability. The ML classifier strongly flags this as malicious. The embedded file and XFA form are components of the exploit delivery mechanism. The primary attack vector is the exploitation of the CVE-2010-0188 vulnerability in Adobe Reader, likely to facilitate the download and execution of additional malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
109b52b4ca039c8d5865981b16fc1b25c25362c7a63d916bf76cd73acfb6c4f3
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xEA 12857 bytes