Malicious RTF — malware analysis report

Static analysis result for SHA-256 169383a5422dc517…

MALICIOUS

RTF

100.1 KB Created: 2021-07-16 07:42:00
MD5: 60e192e922a60663c7c40045a5d1f478 SHA-1: f675535aa55e6a0a619065c4b166ddba20bb28cc SHA-256: 169383a5422dc5175b347c01fcd8abc8278c1ea97ed6160041878aa8a1c93a6a
102 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document 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 user's 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_off0000319f.bin
dc1f2d1ec3359bded82ff60d19690edaf5d7b31c7e72cfdf2880c34226026f43		 rtf-objdata-decoded RTF \objdata at offset 0x319F 3631 bytes

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