PDF malware analysis — malicious · 21b27441c6938d29

MALICIOUS

PDF

28.6 KB

MD5: 466169a4f5f8dcff2e661700d77e22c1 SHA-1: 80ca1a49e563f428becebe6b0c14769d85e216ea SHA-256: 21b27441c6938d29aea153331606d64459a0f5662cf540f61e1fa59594f2a36b

168 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1566.002 Phishing: Spearphishing Attachment

The PDF file contains XFA (XML Forms Architecture) content, which is leveraged by the CVE-2010-0188 exploit. This exploit targets a vulnerability in Adobe Reader's LibTIFF processing within XFA forms, leading to arbitrary code execution. The embedded URL, while seemingly benign, is part of the XFA structure and likely related to the exploit's loading mechanism. The ClamAV detection further confirms the malicious nature of the file.

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: Pdf.Exploit.Agent-36825 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36825
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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