Malicious RTF — malware analysis report

Static analysis result for SHA-256 62803fb934804da4…

MALICIOUS

RTF

26.3 KB Authoring application: Riched20 10.0.22621 First seen: 2024-12-07
MD5: 2576944cf9e6d764666017e3a32f26dc SHA-1: 3e0419eae43c77bb424a876250b965e2bd04aed7 SHA-256: 62803fb934804da461842971d48cb2cd0a86ec9fe42ebfc9a8e6842ab179b7d6
142 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1059.001 PowerShell

The RTF file contains an OLE object that exploits CVE-2017-0199, a known vulnerability for remote code execution. The exploit targets the URL 'https://urlpropogationintimitacyi.blogspot.com/atom.xml' to download and execute a secondary payload. This indicates a classic downloader or dropper attack pattern.

Heuristics 4

  • 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.
  • ClamAV: Rtf.Exploit.CVE_2017_0199-6335035-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Rtf.Exploit.CVE_2017_0199-6335035-0
  • 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 https://urlpropogationintimit
    • https://urlpropogationintimitacyi.blogspot.com/atom.xml

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000186.bin
8a31c937ec69841a3052e81e686d4ab8cfb831de46d7ea79a85e566869e70bca		 rtf-objdata-decoded RTF \objdata at offset 0x186 2601 bytes

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