Malicious RTF — malware analysis report

Static analysis result for SHA-256 c733ff98ed99f486…

MALICIOUS

RTF

2.0 KB First seen: 2019-08-04
MD5: c704ba6215fdc49492eb7166d54aa894 SHA-1: bd8a2d11d8b153d124648ba99ffa8920876a1cc0 SHA-256: c733ff98ed99f486ec26fe93a9a4c13d880885a5e8b7cd1d72bf73969e344cac
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains embedded OLE object data and an \objupdate directive, indicating an attempt to exploit a vulnerability for client execution. The specific exploit and payload are not discernible from the provided evidence, leading to an unknown family classification.

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_off00000022.bin rtf-objdata-decoded RTF \objdata at offset 0x22 928 bytes
SHA-256: c889d4f8db0ea987db16b9a2f9ca345b0540ec516e573e057eedc1f482fcaf7c

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