PDF malware analysis — malicious · 30d8470f2cb72197

MALICIOUS

PDF

24.2 KB

MD5: 1fabf3b79dbec5c9f6af7dcb74a3f82e SHA-1: 777813b2069e66f7b1ec7ee84415c50e85a00bd7 SHA-256: 30d8470f2cb72197d5ce2f7e47b4220b8a64da2efd713bac37498d9bb289271d

172 Risk Score

Malware Insights

MITRE ATT&CK

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

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 LibTIFF vulnerability within Adobe Reader. The 'PDF_XFA_NUMERIC_JS_STAGER' heuristic confirms that a JavaScript stager was recovered, which is further supported by the 'EXTRACTED_FILE_STATIC_TRIAGE' indicating a long encoded blob and script obfuscation. The ClamAV detection 'Js.Exploit.HTML-30' also points to JavaScript-based exploitation. The embedded URL is likely part of the exploit chain or a lure.

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).

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