Malicious PDF — malware analysis report

Static analysis result for SHA-256 e13c484f5d4049ac…

MALICIOUS

PDF

81.8 KB
MD5: 7e72d6e8ece1ac99776de8d50c76821e SHA-1: 7f3d0018f331ca4f221b12e6bbceec5368008203 SHA-256: e13c484f5d4049ac3f83d10c4db5299c6af93927db9f5d98f08ba390844e6730
156 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This exploit likely leads to the execution of an embedded script payload, which is designed to download and run a secondary malicious file. The ClamAV detection 'Pdf.Exploit.Dropped-93' further supports the malicious nature of this PDF, indicating it's a dropper for further malware.

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.
  • ClamAV: Pdf.Exploit.Dropped-93 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-93
  • 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
f9bc58652c4d6b78dd796c6d2efd029c885d836ae346ff9a712a061ac2b2a2dc		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 83261 bytes

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