Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d1879720b6c01c0…

MALICIOUS

PDF

99.5 KB
MD5: 0b5a15eee149f9378e1ddc981a50789d SHA-1: b87713fc9cef94f4abfad1e636bb2e3d2098210f SHA-256: 2d1879720b6c01c0295932abf62f5f7881a2cdfd071a432ed2c8ca6ee745abf5
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. This is indicated by the critical heuristic firing for this specific CVE and the presence of an XFA form with executable script content. The embedded script likely attempts to download and execute a second-stage payload, although the script content is heavily obfuscated and truncated.

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
e0e1b4a8546f0bb6110444e82ce4fd9731e5493e4436bd21f7a894217e13376e		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101131 bytes

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