Malicious PDF — malware analysis report

Static analysis result for SHA-256 df1259ee6b50c3c5…

MALICIOUS

PDF

12.7 KB
MD5: acbbd7ad0bc2aede53d867f40ca5cfdb SHA-1: 32d150ce5771444cb4975425982fc307354d80b4 SHA-256: df1259ee6b50c3c53a99bf02f08e1f2e1a09db0297c15fe36f13a9e423678fd1
248 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains an XFA form that triggers the CVE-2010-0188 exploit in Adobe Reader. This exploit is designed to download and execute a second-stage payload. The embedded script within the PDF further supports the malicious intent, likely facilitating the execution of the exploit payload. The ClamAV detections confirm the malicious nature of the file.

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.

FilenameKindSourceSize
embedded_pdf_script_00000374.bin
0def7250d3b5857ae77440d6862781021a0d78fdf1f6bf479c2a57f5a36fa6dd
pdf-embedded-script PDF raw stream script payload at offset 0x374 12240 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36756
Obfuscation or payload: unlikely