PDF malware analysis — malicious · c9ae5cdd9059233a

MALICIOUS

PDF

13.0 KB

MD5: 806b45ffd874630718cc13c7baab30d2 SHA-1: c40e6ba9c4f4e5f0e70959aa68961cd380d22d74 SHA-256: c9ae5cdd9059233acad00a04e1f3f5b23b2933917de544fc7b32d1dff5aaacdc

212 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript and exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The embedded script is likely responsible for executing the exploit, which is designed to download and execute a second-stage payload. The ClamAV detection further confirms the malicious nature of the file.

Heuristics 9

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-36755 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36755
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.
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
AcroForm button with action trigger low PDF_ACROFORM_BUTTON

PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
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_000003d3.bin` `1d3d09e1d2e6ce27ef7941ef89a00126c7ccd2983f409686c69d2ea640294a27`	pdf-embedded-script	PDF raw stream script payload at offset 0x3D3	12305 bytes

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