PDF malware analysis — malicious · edcf1fdef8adfa42

MALICIOUS

PDF

12.6 KB

MD5: 18be47d08ea7822f7436b73543204c47 SHA-1: 94aa907348321543d3ba27e5d29bcfcaec9631fd SHA-256: edcf1fdef8adfa423891a987b03b0101c4dbf6ee14cba02523689600f173b2c4

190 Risk Score

Malware Insights

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability in Adobe Reader's XFA processing. An embedded script within the XFA form is identified as the payload delivery mechanism. This script is likely designed to download and execute a second-stage payload, leading to a compromise. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure.

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.
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
`embedded_pdf_script_00000359.bin` `7b9f132a348f39800c9f57876f6b0779ebc0370d48cc14f213a519f27d5fe76e`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12202 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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