Malicious RTF — malware analysis report

Static analysis result for SHA-256 ff548841c5258491…

MALICIOUS

RTF

41.4 KB Created: 2018-01-23 14:02:00 First seen: 2018-02-07
MD5: 81359cbdabcac4783f01032cb548e106 SHA-1: aea4ebf233a0afcbe11483e87106dc00fc56b451 SHA-256: ff548841c5258491a63ac63d1e0c56c7690ed2a49284a0b1129363cc03c18c70
122 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains a critical heuristic indicating it is weaponized for CVE-2017-0199, embedding a URL that points to a malicious HTA file. This exploit is designed to download and execute a second-stage payload, likely leading to further compromise. The presence of an OLE object and an automatically linked OLE object further supports the exploitation vector.

Heuristics 4

  • CVE-2017-0199 (OLE2Link / weaponized URL) critical CVE exact CVE_2017_0199_WEAPONIZED_URL
    RTF contains a URL Moniker OLE link to a script/HTA/template-style remote loader, matching the tighter static CVE-2017-0199 shape.
  • 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
  • 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://streetsave.club/styles/break/beta.hta In RTF body
    • http://schemas.microsoft.com/office/word/2003/wordmlIn RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00002779.bin rtf-objdata-decoded RTF \objdata at offset 0x2779 3640 bytes
SHA-256: 0195f8072be3b8c034f59961a991ddeda96b83de3df9dec23f37b84e12abe67d

Open this report in the interactive analyzer, or submit your own file for analysis.