Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d7e10365613d87c…

MALICIOUS

PDF

65.9 KB
MD5: 5eacf5627112c3cfe12eb40c94514c17 SHA-1: fa1d404ed2d5e437bf42b8c34abcff2047fa76e5 SHA-256: 9d7e10365613d87c77d80ee53bed9066a7d3c918e7cd581cb91b5c69d7ff2726
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains an embedded script and exploits CVE-2010-0188, a known vulnerability in Adobe Reader's handling of LibTIFF XFA images. This indicates the document is designed to execute arbitrary code upon opening. The embedded file and script payload further support the malicious intent. No specific family could be identified.

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
bd42829b3c32e25f41432af4862b31b1ebd40b4d5494b6ef511e83571ceaacd0		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 66737 bytes

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