Malicious RTF — malware analysis report

Static analysis result for SHA-256 14d58791c3d10ad5…

MALICIOUS

RTF

6.1 KB First seen: 2017-12-24
MD5: b868acb8f35b8e499cc89116246a2f90 SHA-1: 55fe5bf79289cd72401d04b1aaba583d7d233b5f SHA-256: 14d58791c3d10ad59c97315916c8412487897ea24a22acd2bbb0789d1233b652
162 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an OLE object that is automatically linked and updated, exploiting CVE-2017-0199. This vulnerability is used to download and execute a secondary payload from the URL http://www.al-enayah.com/ssfm/dona.hta. The embedded object data and the weaponized URL are strong indicators of malicious intent.

Heuristics 5

  • 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.
  • \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 http://www.al-enayah.com/ssfm/dona.hta In RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0000003f.bin rtf-objdata-decoded RTF \objdata at offset 0x3F 3111 bytes
SHA-256: a26ca17574ea54d0a18ec9169a388469e297e446d36feb1187003759a26a4c76

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