Malicious PDF — malware analysis report

Static analysis result for SHA-256 d148165a19fb5a16…

MALICIOUS

PDF

99.7 KB
MD5: 39f897292bd4282009d6e68d1d1c0720 SHA-1: 620b51acb98d868e593e6602cb7c35dd05684eb1 SHA-256: d148165a19fb5a163c70c4371ee766b6160765d4dd765d8d6910052323d79c4d
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Clickjacking

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The exploit targets a LibTIFF vulnerability within the XFA processing engine. The embedded script payload within the XFA form is likely responsible for executing the exploit, leading to arbitrary code execution. No specific malware family was identified, but the attack pattern is consistent with exploit-laden 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
61e4fe6a714b4529bdd1c5b1364a392089b71ef7cd3341f51049280faa8c54e0		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101367 bytes

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