Malicious RTF — malware analysis report

Static analysis result for SHA-256 d30ad7329f3f5f25…

MALICIOUS

RTF

87.3 KB
MD5: de4600cbdde0df7cdf6fb55af9643688 SHA-1: 6daf7aa432078b8c3e096bfdda3eb1454f0ce630 SHA-256: d30ad7329f3f5f25c76f4222eea397f9a76447c184833eca1dfff462c88767db
100 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 the execution of arbitrary code, indicating a likely exploit attempt.

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_off000023b3.bin
ca2193859e04a9b49d79cf560fdc33168debe2eb6fb99d8b40a2e269fcad5c17		 rtf-objdata-decoded RTF \objdata at offset 0x23B3 3631 bytes

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