Malicious RTF — malware analysis report

Static analysis result for SHA-256 2d6f362862ee2639…

MALICIOUS

RTF

321.6 KB Created: 2021-02-12 04:30:00
MD5: 304683cf521aa4440335445d7b7b7008 SHA-1: dbf0b223ce72df85645b05de100cdc713274b54f SHA-256: 2d6f362862ee26390d8c125ffd858656e608b577a1159d8b9c53e36679c963d0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that triggers a known vulnerability, CVE-2017-11882, in the Microsoft Equation Editor. This vulnerability allows for the execution of arbitrary code, indicating a malicious intent to compromise the user's system. No specific malware family could be identified from the available evidence.

Heuristics 4

  • 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
  • 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/2003/wordml

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0000011e.bin
56e1472e4f0f84416977e2c1a871ce6e5298e86d59e9acb1436eea17a2e7c55d		 rtf-objdata-decoded RTF \objdata at offset 0x11E 3629 bytes

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