PDF malware analysis — malicious · 64bda4365ff159d1

MALICIOUS

PDF

14.4 KB

MD5: e8191ba7a76a40bc4d9d0a22905816e9 SHA-1: 97caedbc2998fb64771e819ac1d81601efbc5d3b SHA-256: 64bda4365ff159d122d2d5d0997b0d9af9a1602914a20a240b380b2c81804fa5

200 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The file is a PDF exploiting CVE-2010-0188 via XFA forms, a known vulnerability in older Adobe Reader versions. Heuristics indicate it acts as a stager, likely downloading and executing a secondary payload, as suggested by the ClamAV detection 'Js.Exploit.HTML-30'. The embedded URL is a schema reference and not directly malicious, but the exploit itself is the primary threat.

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.
ClamAV: Js.Exploit.HTML-30 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Js.Exploit.HTML-30
XFA numeric character-table eval stager high PDF_XFA_NUMERIC_EVAL_STAGER

PDF XFA initialize script reads numeric form data from rawValue, maps the values through a short character table, and evals the reconstructed stage. This is an exploit-kit staging technique even when the final decoded layer remains encoded.
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://www.xfa.org/schema/xfa-template/2.5/

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