PDF malware analysis — malicious · b4faa9c723ef3871

MALICIOUS

PDF

16.3 KB

MD5: d098030d59d130383bb7cb13071f7e39 SHA-1: 4987083c5de3580e39483fc59b803013c7dd9286 SHA-256: b4faa9c723ef387147951557cce8d5e8b2bc8b34bb8dc0cc1075202dad02c66c

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The file is a PDF document that leverages an XFA form to deliver a malicious payload. Heuristics indicate exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. An embedded script, likely responsible for further malicious actions, was detected within the PDF stream. The embedded URL is likely part of the exploit chain or payload delivery.

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.
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
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` `2471653bdfdd3e6ff47aa6cdc255520d7ef945148d9ef402bc1b6820841cfef8`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	15942 bytes

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