Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 303f6cb6bffb7bab…

MALICIOUS

RTF / .DOC

857.2 KB
MD5: 9b33bc2074cc4df27de67aa3a4751207 SHA-1: 7f6d18d3a714e92dbb75b58216dcb01bf0e7f3dc SHA-256: 303f6cb6bffb7bab41a611f99a776a07fcfda896cb344d3eb4f34461922c60b4
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment

The file is an RTF document that contains an embedded OLE object, which is forced to activate via \objupdate. The document body attempts to deceive the user into enabling editing and macros by presenting text related to financial audits and internal controls. This is a common lure used by malware droppers to bypass security measures and execute malicious content.

Heuristics 3

  • \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_off0001e43a.bin
70da7a4750c2319cfeda617e31093167ec9aa7451cd13cf49d684d12338dc8ee
rtf-objdata-decoded RTF \objdata at offset 0x1E43A 4244 bytes