Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 817fe891553c8616…

MALICIOUS

RTF / .DOC

737.6 KB
MD5: 5cfd69779a76510d266261d144959cf8 SHA-1: 718b9a7d909b7ca46cd53544fd5b3a54d3988ed9 SHA-256: 817fe891553c8616f62a5d2117b21bd8d35c3dd47ca00dedcdce5b4c775422ed
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1059 Command and Scripting Interpreter T1059.005 Command and Scripting Interpreter: Visual Basic

The RTF document contains embedded OLE objects and uses lures to encourage the user to enable editing, which is a common technique for malware droppers. The heuristic 'SE_ENABLE_LURE' specifically indicates that the document instructs the user to enable macros or editing. This suggests the document's primary purpose is to bypass security measures and execute embedded malicious content, likely an OLE object, to further compromise the system.

Heuristics 4

  • 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
  • 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_off0000af08.bin
9189e5942b791db1418e09c9ec7ddb4ab614cc905eb24ab4591c28628d5c0a52
rtf-objdata-decoded RTF \objdata at offset 0xAF08 4236 bytes