Malicious RTF — malware analysis report

Static analysis result for SHA-256 1d2816f51a345050…

MALICIOUS

RTF

4.9 KB First seen: 2020-05-25
MD5: 040439006050008c8539d35a5108ae4d SHA-1: 0441e2e652600e3dd0fceee55c11759f030e9f09 SHA-256: 1d2816f51a3450505246ac710661a089e0964fbe152fcc992c6faa39535efa91
82 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an OLE object that leverages the CVE-2017-0199 vulnerability. This vulnerability allows the embedded object to fetch and execute a remote document from the URL http://212.86.115.71/template.doc, indicating a likely download-and-execute attack pattern. The specific malware family could not be determined from the available evidence.

Heuristics 3

  • CVE-2017-0199 (OLE2Link / remote URL Moniker) critical CVE likely CVE_2017_0199
    RTF contains a URL Moniker OLE link whose decoded target is remote. Office can fetch and process the response through the CVE-2017-0199 OLE2Link attack path, but the server-side content type is not proven statically.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • 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://212.86.115.71/template.doc In RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000011.bin rtf-objdata-decoded RTF \objdata at offset 0x11 2481 bytes
SHA-256: b2555a38e5ad6e295820f9eae7a1201583d6a53f71019e0f6f7018e8b8013dfa

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