PDF malware analysis — malicious · 5902c51256176e04

MALICIOUS

PDF

12.8 KB

MD5: 42a8328e3c9dc6e5a3d7f8c32ed48d07 SHA-1: f68d0b32b2f51e1c58fe00af2d0076db84a14064 SHA-256: 5902c51256176e04f7f2d0bfecb2aeccd1060eb8eeeea2b0a7a6bc9221adf2ec

208 Risk Score

Malware Insights

This PDF file contains an XFA form with an embedded script, which is a known vector for exploiting vulnerabilities. Specifically, the CVE-2010-0188 heuristic indicates an exploit targeting Adobe Reader's LibTIFF component. The embedded script is likely responsible for downloading and executing a second-stage payload, as suggested by the 'EXTRACTED_FILE_STATIC_TRIAGE' heuristic indicating a long encoded blob and script obfuscation. The ClamAV detection further confirms its malicious nature.

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_00000359.bin` `a22bbd2e0e9575fd636f224d2b2552486d92944445fa1a2a56a7f0aca4b94730`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12330 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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