PDF malware analysis — malicious · c198000f8a99b736

MALICIOUS

PDF

24.2 KB

MD5: 2eb0a66dca49471fef8caec3eebc99d4 SHA-1: 33fae3191aee74ca8c11becd208da5b30591a5ea SHA-256: c198000f8a99b7369cc8b4c499a49be551cfb682c2a9d2be49d893516a7ecfb6

172 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: JavaScript

The PDF file contains XFA (XML Forms Architecture) data which is known to be a vector for exploits. Specifically, the 'CVE_2010_0188' heuristic indicates exploitation of a vulnerability in LibTIFF within Adobe Reader. The 'PDF_XFA_NUMERIC_JS_STAGER' heuristic confirms the presence of a JavaScript stager, which is further corroborated by the ClamAV detection 'Js.Exploit.HTML-30'. This stager likely downloads and executes a second-stage payload, although the exact nature of the payload is not discernible from the provided evidence.

Heuristics 6

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 JavaScript stager high PDF_XFA_NUMERIC_JS_STAGER

PDF XFA script reconstructs a hidden JavaScript stage from numeric field data or a character table, then evals the result. The decoder is gated on XFA script, numeric staging, and recovered exploit-like JavaScript or shellcode markers.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`xfa_numeric_stage_000.js` `088297143b7b97d25ad41e0c0f956e5a1de2c06488467854c6a626ba1b3af696`	deobfuscated-js	XFA rawValue numeric decoded JavaScript (raw) at offset 0x3A8	3739 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s). Carved artifact contains 3 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.