Malicious RTF — malware analysis report

Static analysis result for SHA-256 607c6c807638910c…

MALICIOUS

RTF

113.2 KB Created: 2021-07-16 07:42:00
MD5: 2dd35f44f62ee365354ef0c04336d967 SHA-1: f2a6985eb9cc2a41065a639765dfea66b8bc1b6b SHA-256: 607c6c807638910c690bc3d9c757019d60b233dbd33a6cdff33868d158fe15ec
102 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that triggers a known vulnerability, CVE-2017-11882, within the Microsoft Equation Editor. This vulnerability allows for the execution of arbitrary code, indicating a malicious intent to compromise the system. No specific 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_off000032b4.bin
ee5d5deb0da088c4f97fb0a01eea5cb1ad237d72cd4744d6bc6cd9e6208d2988		 rtf-objdata-decoded RTF \objdata at offset 0x32B4 3629 bytes

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