PDF malware analysis — malicious · 25e7dc39f9e2f1eb

MALICIOUS

PDF

13.2 KB

MD5: 51a920dc3a204f7f5c03312d98683893 SHA-1: bbd9611fdfbf19eb153e446bd4a883c483ac49b8 SHA-256: 25e7dc39f9e2f1eb83c2f30142a3ab10cc069823d1d805efff9dfde9fdb4d1eb

248 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter T1059.001 PowerShell T1059.007 JavaScript

The PDF file contains an XFA form with an embedded script, triggering critical heuristics for CVE-2010-0188 (Adobe Reader LibTIFF XFA image exploit). This indicates the file is designed to exploit a vulnerability in Adobe Reader upon opening. The embedded script payload is likely responsible for executing the exploit. The presence of an embedded URL, though not malicious in reputation, is noted.

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
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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_00000374.bin` `5675973cb02a815f00f59b981f9c89ba88fdfd747afb470e1288065c95602f30`	pdf-embedded-script	PDF raw stream script payload at offset 0x374	12764 bytes
Detection ClamAV: Pdf.Exploit.Agent-36756 Obfuscation or payload: unlikely

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