Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 c6232f818d7c848d…

MALICIOUS

RTF / .DOC

769.6 KB Created: 2019-09-17 13:59:00
MD5: f3d861146c64468ef9f58dfbc3cf59a5 SHA-1: b232ce9f70d3f483487eb5b0665a69463016d136 SHA-256: c6232f818d7c848dee9a6a653df75e0174e38362ff2e5f6040c5e7418af5f219
80 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model T1137.001 DLL Search Order Hijacking

The RTF document contains embedded OLE objects, with heuristics indicating that \objupdate forces OLE activation. This suggests the document is designed to exploit OLE object handling to execute embedded code or trigger malicious actions. The embedded URL appears to be malformed and benign. No scripts were extracted from this sample.

Heuristics 4

  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • 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://schemas.microsoft.com/office/word/2{\3\V\V\V\V\V

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off000b42d8.bin
909675811b63fc77f61fbefa69d4f29206b4c0a9d33154be1841d1ec1d9f0127
rtf-objdata-decoded RTF \objdata at offset 0xB42D8 1443 bytes