Malicious RTF — malware analysis report

Static analysis result for SHA-256 b30dfdd9c548b43b…

MALICIOUS

RTF

156.5 KB
MD5: cd6c3cf0c65c6310cf8d7024fd2a0490 SHA-1: db2e7a262d6db5bceeb425aaf6e09526f48a16f8 SHA-256: b30dfdd9c548b43ba58f12b49af99c48cbbbcd5605a81a81b3292e347870a483
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that triggers a critical vulnerability, CVE-2017-11882, in Microsoft Equation Editor. This vulnerability allows for the execution of arbitrary code, indicating a likely exploit delivery mechanism. No further payloads or network indicators were extracted from this specific file.

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_off00002314.bin
9ab7c211f0817c6c8538cda77ad5b2dda595712d52bad608aca45cf1bef7410e		 rtf-objdata-decoded RTF \objdata at offset 0x2314 28445 bytes

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