Malicious RTF — malware analysis report

Static analysis result for SHA-256 fe64911fa1929aab…

MALICIOUS

RTF

441.6 KB First seen: 2019-05-16
MD5: 4adbf1790548e67484bcc9093a9e7fe7 SHA-1: a064adc8d96fc6583737aff14a3443f13dee1796 SHA-256: fe64911fa1929aabd37a63c66c4b66e573ff1a6df6ef21839c9b256b45b0cf1f
122 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an OLE object with a weaponized URL pointing to a HTA file, indicating exploitation of CVE-2017-0199. The embedded URL, https://u.teknik.io/8X3Y7.hta, is likely used to download and execute a second-stage payload. The presence of OLE object data and the forced OLE activation further support the malicious nature of the file.

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.
  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • 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://u.teknik.io/8X3Y7.hta In RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00046bd1.bin rtf-objdata-decoded RTF \objdata at offset 0x46BD1 51185 bytes
SHA-256: 5696eb072ea959da04c0b89ca2ab8719be1fd113cb19f708ec5f482a4c158567

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