Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ddc657790a6b1f2…

MALICIOUS

PDF

59.4 KB
MD5: 3127a3f529a6e205c1211baa653454d7 SHA-1: 47af66496429b135082cab0b7c50ecf9b266335a SHA-256: 1ddc657790a6b1f269a110efa5337cae6552e3479b3f94ce3b3d2c6072655721
138 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment T1190 Exploit Public-Facing Application

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit, which is a known vulnerability in Adobe Reader related to LibTIFF XFA image processing. This indicates the file is designed to exploit this vulnerability to execute arbitrary code upon opening. No specific family could be identified, but the attack pattern is consistent with a malicious document used for initial compromise.

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
8650371cf59295343ab3998c41ec41a264f652bb23861e9b2fe0daf40108f0ea		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 60067 bytes

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