Malicious PDF — malware analysis report

Static analysis result for SHA-256 35677c0159001db7…

MALICIOUS

PDF

99.8 KB
MD5: 3f42d5cc32e4300cab5a8741a20ab183 SHA-1: 9d4c444f16b8218a0826678a0b223814b9bcdda1 SHA-256: 35677c0159001db7fd6cd6f5cc6df2b620f7e0f5ef5960535db94e419a6e20e5
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF

The sample is a PDF file that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The critical heuristic firing indicates that the decoded XFA payload was matched, suggesting the exploit is intended to execute arbitrary code. The PDF also contains embedded script payloads within XFA forms, further supporting the exploit execution. No specific malware family was identified, but the attack pattern is consistent with a malicious PDF designed to compromise the user's system.

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
cde1bae3af7f9852cba5f82badca18111021c6709b1b8ea487f034b1767230f7		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101438 bytes

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