Malicious RTF — malware analysis report

Static analysis result for SHA-256 7d1cb23d1ce3f28b…

MALICIOUS

RTF

156.4 KB
MD5: 8682fb4b8054013eb078dade2e05be40 SHA-1: aed8df5a21ebeb806d6e238fdb572dab1181aa2b SHA-256: 7d1cb23d1ce3f28ba46b88bd20deedfd25bbd9b48d7a91e9316deaad5cf80aa1
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that triggers a critical heuristic for CVE-2017-11882, indicating an exploit targeting the Equation Editor vulnerability. This vulnerability allows for arbitrary code execution on the victim's machine.

Heuristics 3

  • CVE-2017-11882 — Equation Editor FONT record overflow critical CVE likely CVE_2017_11882
    Equation Editor MTEF contains an overlong FONT typeface field, the vulnerable copy primitive for CVE-2017-11882. This is stronger evidence than the Equation Editor CLSID alone because it identifies the malformed record that drives code execution in EQNEDT32.EXE.
  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0000238a.bin
7a146d327df5addb9a93f69c03547d39c3a4b0b9b8f0eef03a4539ffa2c886f6		 rtf-objdata-decoded RTF \objdata at offset 0x238A 28445 bytes

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