Malicious PDF — malware analysis report

Static analysis result for SHA-256 59b6b3ef1242350a…

MALICIOUS

PDF

79.1 KB
MD5: 00aad779446ed31ac36647df976d8e04 SHA-1: 532d8c56c89aee0ec8e9961c6f4b9bce795f78d9 SHA-256: 59b6b3ef1242350a7a5d7d9dfe510c00772ae7ecc9e92ebdcf81c9d50dd36514
136 Risk Score

Malware Insights

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

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader, leveraging an XFA form and an embedded script payload. The exploit is designed to execute arbitrary code, likely leading to further compromise. The embedded file and script markers strongly indicate a malicious intent to deliver a secondary 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
d0b5c485130074d6371aa0ab62fcddf0ac26f04b634a392c25129d9d050c8831		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80250 bytes

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