Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cd420460433293f…

MALICIOUS

PDF

12.4 KB Created: 2010-08-01 04:20:19 Authoring application: daceWis muleDoc First seen: 2026-05-08
MD5: 549c7bae3f1465ee1cd8ffd36dd82e1f SHA-1: 53ba425b0d2fb56edc91fe8d8500262a00dd51b7 SHA-256: 1cd420460433293f135ecbea4f005ec945da4c5a1ac0fececaf68b54a9879ffb
110 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF file exhibits multiple indicators of malicious intent, including embedded files and a script payload. The presence of these elements strongly suggests that the document is a dropper or container for a secondary malicious payload. The embedded file 'embedded_file_obj0012.bin' is likely the primary component of this payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • 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 script payload in PDF stream info 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 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/ In PDF document text
    • http://www.xfa.org/schema/xci/1.0/In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.5/In PDF document text
    • http://ns.adobe.com/xtd/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text
    • http://ns.adobe.com/xfdf/In PDF document text
    • http://www.xfa.org/schema/xfa-form/2.8/In PDF document text

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin pdf-embedded-file PDF EmbeddedFile object 8 at offset 0x17AB 84 bytes
SHA-256: d81baa73e490e4cb879e13927cacd1dd1be37524a37eac51603e15117c578777
embedded_file_obj0009.bin pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x185C 228 bytes
SHA-256: 24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0
embedded_file_obj0010.bin pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x194D 1093 bytes
SHA-256: e315173f4ed7a7c60f8cfcece79add090f5c0cc9bf253e70745c93ed4230caa4
embedded_file_obj0011.bin pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x1C11 199 bytes
SHA-256: c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460
embedded_file_obj0012.bin pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x1D04 54948 bytes
SHA-256: 94d0d5ca3e31e93b634ad923bb2f8c0291fd7a0309e620dec913efb3b66ae187
embedded_file_obj0013.bin pdf-embedded-file PDF EmbeddedFile object 13 at offset 0x2AD1 77 bytes
SHA-256: e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876
embedded_file_obj0014.bin pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x2B78 56 bytes
SHA-256: 92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a

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