PDF malware analysis — malicious · a4692400faf0f27a

MALICIOUS

PDF

13.2 KB

MD5: 67846a52ebfb5648b49cf4669295bbca SHA-1: f1745233a52c756e81b653ad180209e883831351 SHA-256: a4692400faf0f27a465c916ceb6d32c0fdefbf4d5f7cdb063406efc3488d68ff

208 Risk Score

Malware Insights

The PDF file contains an XFA form with an embedded script, which is a known vector for exploiting vulnerabilities like CVE-2010-0188 in Adobe Reader. The embedded script is likely designed to download and execute a secondary payload. The presence of the CVE_2010_0188 heuristic firing strongly indicates exploitation of this vulnerability. The extracted URL is likely related to the XFA template but may also be used in the attack chain.

Heuristics 7

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.
XFA form contains executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
Suspicious extracted artifact medium 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.
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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000364.bin` `4a5fa4a12b6c51254526f3330f669f65dea81e33a22b47f04600d366a4e76d12`	pdf-embedded-script	PDF raw stream script payload at offset 0x364	12788 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 37 long hex-escaped blob(s).

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