Malicious RTF — malware analysis report

Static analysis result for SHA-256 48ed9fca94ebc22f…

MALICIOUS

RTF

53.3 KB
MD5: 41fb7145a0a307767608231281aa6939 SHA-1: 10b460b89c204d3c7f85a56e9d0e99111f0e829c SHA-256: 48ed9fca94ebc22f15984467f9f73dd3f1acd978a5f634517bc28875270893c7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that leverages a known vulnerability in Microsoft Equation Editor (CVE-2017-11882). This vulnerability allows for the execution of arbitrary code, likely to download and run a secondary payload. 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.
  • Equation Editor CLSID critical RTF_EQUATION_EDITOR
    Equation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
  • 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_off00000106.bin
64d4d1d2f7c9ea5f1c67f0c4ef1aa2f1813e92bc8507333804ebf3386a5546c8		 rtf-objdata-decoded RTF \objdata at offset 0x106 3631 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.