PDF malware analysis — malicious · bf1dd4fc474c2b75

MALICIOUS

PDF

111.4 KB

MD5: eb54166f1415e998847118dd1c20087e SHA-1: 69281d447c6d3ff19f80df59f24616c884fb8870 SHA-256: bf1dd4fc474c2b7503115e413aa88c50d561b8e041f16a0b4864863819b44d74

190 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains XFA (XML Forms Architecture) 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 embedded script payload, detected by PDF_EMBEDDED_SCRIPT_PAYLOAD and PDF_XFA_SCRIPT, likely facilitates the download and execution of a second-stage payload. The ClamAV detection further confirms its malicious nature. The embedded URLs are related to XFA but do not appear to be malicious themselves.

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://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000238.bin` `4dc3325d9924267fac743e8359faa1dfe98e260a1e04ab98eaf8aa3be7828091`	pdf-embedded-script	PDF raw stream script payload at offset 0x238	113387 bytes

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