Malicious RTF — malware analysis report

Static analysis result for SHA-256 30fdb355c1c8ad91…

MALICIOUS

RTF

113.3 KB Created: 2021-07-16 07:42:00
MD5: c3a03a665e973dedcd6558a83d6aa273 SHA-1: 5118c1c3848872d4cf9e6fb9a2257e30266fb88d SHA-256: 30fdb355c1c8ad91ed6f631b56d2fabb232050d3f02b359be86586a7763f4d68
102 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that triggers the CVE-2017-11882 vulnerability in Microsoft Equation Editor. This vulnerability allows for arbitrary code execution, indicating a malicious intent to compromise the system.

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_off000032d7.bin
53f424630211572782435e9fb35b5cc4b8be7e784a9ccac21622b64c971c21fa		 rtf-objdata-decoded RTF \objdata at offset 0x32D7 3629 bytes

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