Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 f15eeb04e8bafbfb…

MALICIOUS

RTF / .DOC

817.1 KB
MD5: 6d3b75478ada0d189a70bbb538b72c8a SHA-1: 9af775bacb024621f04631b521e8a3bff31de255 SHA-256: f15eeb04e8bafbfb94434ef62f43c568e2d0ecf63aaf643510c7f25635e33097
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The sample is an RTF document containing embedded OLE objects, with heuristics indicating that \objupdate forces OLE activation. The document body contains a lure instructing the user to 'click Enable editing from the yellow bar above', a common technique to bypass macro security settings. This suggests the document is designed to trick the user into enabling content that would likely lead to further malicious activity, such as downloading and executing a payload.

Heuristics 4

  • \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 OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00057667.bin
03fee4e8b79840d163efc120c85801dd664661e290fe516977ebc87e9b87bbc8
rtf-objdata-decoded RTF \objdata at offset 0x57667 2001 bytes