Malicious PDF — malware analysis report

Static analysis result for SHA-256 960e81f193f22795…

MALICIOUS

PDF

60.0 KB
MD5: 576b7d3c5051783a68dcc26fbf83381a SHA-1: 74fed9bed2778a28200fde35ca4006f1ebbed3b3 SHA-256: 960e81f193f2279512e3aef786128e13f4c8df36b044d808dc4d98c8dee8f898
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains an embedded script payload within an XFA form, triggering a critical heuristic for the CVE-2010-0188 exploit in Adobe Reader. This indicates the document is designed to exploit this vulnerability upon opening, likely leading to arbitrary code execution. No specific malware family was identified, but the attack pattern is clear.

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
cae3eacba381044e4eaa4dd7d2e075a68e6db06b5cb599bd8db1eb98d33f160b		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 60744 bytes

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