Malicious PDF — malware analysis report

Static analysis result for SHA-256 e06c783243b2d259…

MALICIOUS

PDF

53.2 KB
MD5: 64b72b457d524d19cdc45deaec35cdf3 SHA-1: f16d6b71f11b16fe8f9008705222749d1c87f80b SHA-256: e06c783243b2d2590d1ce583fa0c63699c5a05bd7eefd4e94bcc7e1c7a065965
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1566.002 Phishing: Spearphishing via Service

The sample is a PDF document that leverages the CVE-2010-0188 vulnerability, which is an exploit targeting Adobe Reader's handling of XFA forms and TIFF images. The heuristic firings indicate an embedded script payload within an XFA form, directly pointing to exploitation. The embedded file is likely the second-stage payload. No specific family could be identified, but the attack pattern is consistent with exploit-laced documents.

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
87d9762e2c67a8c485fd99ad2c041c8a5dd5b08c85a7c0c198b63bb784c9422b
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 53776 bytes