Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9765feea2b0d0f7…

MALICIOUS

PDF

79.0 KB
MD5: b6e0aa1257d68f919e09ff5e40931d75 SHA-1: c57a0baaa90cf1c5d0658cf9e012acf4ea8d194f SHA-256: d9765feea2b0d0f76749274e2178dba8ceace1e7eb0250c88ec09f64911f6cce
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1190 Exploit Public-Facing Application

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader's handling of LibTIFF XFA images. The exploit is embedded within the XFA form structure and is designed to execute a payload. The presence of an embedded script payload further supports the malicious intent. The primary IOC is the CVE identifier itself, indicating the specific exploit used.

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
819ec13a3b88122ae12b0da71362d1a5c979a729b12d58ec50f7c3c64eb1880d
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80155 bytes