Malicious RTF — malware analysis report

Static analysis result for SHA-256 014d56245028c914…

MALICIOUS

RTF

906.1 KB Created: 2005-04-22 16:10:00 First seen: 2019-05-16
MD5: 82b0699f54afd73b2b95d0b963ebc0fb SHA-1: 010b6125840d00872cdc85672545342b027072d6 SHA-256: 014d56245028c914616ec8fefbe2cccd3ebb0777a486be11a2eb276231f7de3d
290 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF file contains OLE object data and triggers critical heuristics for CVE-2017-0199 and CVE-2017-8570. These exploits are known to download and execute remote content. The embedded URL points to an Excel file, suggesting a malicious document lure designed to trick users into opening it and triggering the exploit. The document body itself appears to be a standard operating procedures document, likely used as a pretext.

Heuristics 8

  • Composite Moniker — CVE-2017-8570 (drops SCT script) critical CVE related CVE_2017_8570
    RTF \objdata decodes to OLE data containing the Composite Moniker — CVE-2017-8570 (drops SCT script) CLSID — the vulnerable control/moniker is embedded directly in the document's object stream, the delivery shape of this exploit. RTF objects auto-render when Word opens the file.
  • 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.
  • Composite Moniker in RTF OLE object high CVE related RTF_COMPOSITE_MONIKER_RELATED
    RTF contains Composite Moniker CLSID in OLE object context, but no nearby scriptlet/SCT payload was confirmed. Treat as related moniker attack-surface evidence rather than proof of CVE-2017-8570 exploitation.
  • ClamAV: Rtf.Exploit.CVE_2017_0199-6335035-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Rtf.Exploit.CVE_2017_0199-6335035-0
  • Automatically linked OLE object high RTF_OBJAUTLINK
    RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://sp.analyticagroup.com/AnalyticaQA/Current%20SOPs/SOP%20LIST.xls In RTF body
    • http://schemas.microsoft.com/office/word/2003/wordmIn RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00028817.bin rtf-objdata-decoded RTF \objdata at offset 0x28817 6697 bytes
SHA-256: ef34eb374600f959edc7d9b22775f784daac5c811ddd0af57fa4ab0700b879a0

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