Malicious RTF — malware analysis report

Static analysis result for SHA-256 901b69178157f6e0…

MALICIOUS

RTF

4.9 KB First seen: 2020-07-24
MD5: 4028fcca925a2d144a68da793ef10cc0 SHA-1: 27ceb6b8a84af010b472a6a8db48e8f12c9fd720 SHA-256: 901b69178157f6e02755876e3f5bd836a4a2d31604974334c701b850f7da66c8
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains OLE object data and an \objupdate directive, indicating an attempt to exploit a vulnerability. This mechanism is commonly used to achieve arbitrary code execution upon opening the document. No specific family could be identified from the available heuristics.

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_off000001ec.bin rtf-objdata-decoded RTF \objdata at offset 0x1EC 1966 bytes
SHA-256: 4df83412740455c31dbf27ee747c6927bb768b7a223202704fc5870fba8b0747

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