Malicious PDF — malware analysis report

Static analysis result for SHA-256 d24586d71aa35a29…

MALICIOUS

PDF

99.9 KB
MD5: 0f34c4e7fb973e46d6ae56d943cd9d08 SHA-1: 90b67def9644a580ac072badc9558c3023f37142 SHA-256: d24586d71aa35a29c2cf0f1641683bd1cf2c440e92afde81eaceb3ecf05daf6d
136 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF XFA images. The exploit payload is embedded within an XFA form and is designed to execute arbitrary code. The presence of an embedded script payload further supports the malicious intent. The attack pattern is consistent with exploiting known vulnerabilities in PDF readers to achieve initial code execution.

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.
  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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.

FilenameKindSourceSize
embedded_file_obj0008.bin
6c97e41149d34483f67b7a53f2b27b9812d04501d11a262e32718d57f0abca2c		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101501 bytes

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