PDF malware analysis — malicious · 7f0e3ddaa9d5e558

MALICIOUS

PDF

14.2 KB

MD5: 0a8bc4554678ea9505ea7855ed9370dd SHA-1: e66050a8e40178a5dbeb0f40d2c313a651146b2e SHA-256: 7f0e3ddaa9d5e558120abf7ae04a1256edcb93a0f287f5bebed24d36e4a1acf2

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that exploits CVE-2010-0188 via XFA forms. Heuristics indicate it uses an XFA numeric character-table evaluation stager, which is a common technique for executing arbitrary code. ClamAV detected it as Js.Exploit.HTML-30, suggesting embedded JavaScript is involved in the exploit chain. The embedded URL is likely related to the XFA template and not directly malicious, but the exploit itself is the primary threat.

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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