Malicious RTF — malware analysis report

Static analysis result for SHA-256 e9b9eddb20f59a68…

MALICIOUS

RTF

7.1 KB
MD5: 4a6e8a9b1318278cf4522b0c5f5d5e96 SHA-1: f6f8ae0bfc5ae7a36afa9439272f2ce0f8bbd092 SHA-256: e9b9eddb20f59a68e44fa0dfefaeb03411cb382a873691f9eac9f7f076c76563
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious File

The RTF document contains an OLE object with embedded data, triggered by \objupdate, indicating an attempt to execute embedded content. The presence of an OLE object and the \objupdate directive strongly suggest a malicious intent to exploit RTF parsing vulnerabilities or to launch embedded executables. The objdata section, named 'objdata_00_off000007aa.bin', is the primary artifact of interest, likely containing or leading to the execution of a secondary payload.

Heuristics 2

  • \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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off000007aa.bin
abc6b73a7c46c29a00c94301013b60b3c3f3db637d49b7f85b5c723595580131
rtf-objdata-decoded RTF \objdata at offset 0x7AA 1923 bytes