PDF malware analysis — malicious · aa4c6dfb1c475fec

MALICIOUS

PDF

12.7 KB

MD5: 661cc0058a8557676e3fa6c0faa6f822 SHA-1: 91366f52514bf62eb2f928ca3e6acb8e0fa65a4b SHA-256: aa4c6dfb1c475fec75e1d8585e141f6ac9fb7e86c6eed7a982ba698c23f49201

248 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains an XFA form with an embedded script, triggering critical heuristics for CVE-2010-0188, an Adobe Reader LibTIFF exploit. ClamAV also detected the file as Pdf.Exploit.Agent-6136306-0. The embedded script likely attempts to download and execute a second-stage payload, leveraging the exploit to achieve arbitrary code execution.

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` `cff0813e95eadca0466650dcea6deb04908fe41b538f4f249e70dc3e96dfe15e`	pdf-embedded-script	PDF raw stream script payload at offset 0x374	12240 bytes
Detection ClamAV: Pdf.Exploit.Agent-36756 Obfuscation or payload: unlikely

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