Malicious PDF — malware analysis report

Static analysis result for SHA-256 41c02f5517e439ba…

MALICIOUS

PDF

99.9 KB
MD5: f8f03eddade3b5b0d2664ca940b3c531 SHA-1: 08a1ab142bdfc06d4fa5b5a3d7b7c054d35da79d SHA-256: 41c02f5517e439bad7a4b1cc9d4db86cd5fee4a95eadb8d676d96e9eba40c5b2
136 Risk Score

Malware Insights

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

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The embedded XFA form contains executable script, which is likely responsible for triggering the exploit. The embedded file and script payload indicate the document is designed to download and execute a second-stage payload.

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
0e031b2887a8dfc9b539ea32cdf07365c88f7c886dd1766af6e5ef409dcab83b		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101536 bytes

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