Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d0eaba1c9141903…

MALICIOUS

PDF

50.6 KB
MD5: 11c52ebb04d7f118ca309e7355f3090a SHA-1: 075b0b1a9b83d72d213b0b5b1e56116c5d2867de SHA-256: 0d0eaba1c9141903949aa9d4402a8882fdb9be8909b51f25fa1e4a97247a9df5
216 Risk Score

Malware Insights

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

The PDF file contains an XFA form that exploits CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component. This exploit is designed to execute arbitrary code, indicated by the 'PDF_XFA_SCRIPT' and 'CVE_2010_0188' heuristic firings. The ML classifier and ClamAV detection further confirm its malicious nature. The embedded file and script payload suggest it's designed to download and execute a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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
a84863aa33ae49d9fff646ee1b5596eb500f06c472f63334d8375c8bbb4f34b8		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 51043 bytes

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