Malicious PDF — malware analysis report

Static analysis result for SHA-256 18982d160b6439a1…

MALICIOUS

PDF

99.7 KB
MD5: 4146de47333dec8308f944a1165a8581 SHA-1: 5bce3952937299bb50cb5a4ddff9cda4828ef9b2 SHA-256: 18982d160b6439a18900af27814a5d38d478c8f87aaf49eed3964c0c29e3718b
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file is flagged as malicious by an ML classifier and contains embedded content indicative of exploitation. Specifically, it triggers the CVE-2010-0188 vulnerability, which is known to be used for client-side code execution. The embedded script, though obfuscated, likely facilitates the download and execution of a secondary payload, a common tactic for malware delivery.

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
a2b949f0e36c09f718506b3a13ead0b04e12d0eaffd9d782e108b09f5afa6845		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101298 bytes

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