Malicious PDF — malware analysis report

Static analysis result for SHA-256 001efa32ef9256ed…

MALICIOUS

PDF

99.4 KB
MD5: b2af8e1c9ce405de6383d17eadcd701b SHA-1: a28e8cc9f7f61a6ef6a672b394619f84df02740b SHA-256: 001efa32ef9256edde52118b8d78ff9f93d95bb29ca06c3c581ecbbf2368edbc
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1190 Exploit Public-Facing Application

The critical heuristic firing for CVE-2010-0188 indicates this PDF exploits a known vulnerability in Adobe Reader. The embedded file and script payload heuristics further suggest that this exploit is used to download and execute additional malicious content. The ML classifier strongly supports a malicious verdict.

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/
    • 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
37bff17e94aaf05eb727d5c91ff422979b99f78222dc9fa3d0f0b3f91f9c5025
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101043 bytes