Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e62786e1184bf1d…

MALICIOUS

PDF

99.6 KB
MD5: 72920103116c335de4521ea461465c92 SHA-1: bd33e2145b7dc51f7bf54b471d92f37f41f65171 SHA-256: 1e62786e1184bf1d383ca1bb9c12fa03a83324710c8861c44aacaf6e64660cfa
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF T1059.007 Command and Scripting Interpreter: JavaScript

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component via XFA forms. The embedded script payload within the XFA form is likely responsible for executing the exploit. The document body contains obfuscated JavaScript, suggesting an attempt 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
673ca2d008ca1f89388d636dcf5931d5e7f469fcd7a91ab3aa98a1fcc152962f
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101211 bytes