Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 5528be0d5ed551d3…

MALICIOUS

RTF / .DOC

263.1 KB First seen: 2024-05-18
MD5: e1ca87a42e931fffa21d5297321c22a1 SHA-1: 674e531d606c0a31c2b5d30d51c99b793d071b61 SHA-256: 5528be0d5ed551d36e978a264e223bb67aad897ec94dfb3d7641dbb342a6a52c
120 Risk Score

Malware Insights

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

The RTF document contains OLE object data and is configured to automatically update and activate OLE objects, indicating an attempt to execute embedded content. The document body provides a lure related to financial auditing to encourage users to enable editing, a common tactic for macro-based malware droppers. No scripts were extracted, but the presence of OLE objects suggests the execution of a secondary payload.

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_off00016c0e.bin
9f01611ae8b623cb617a4a591a5029a54dba5630cf0cc04ebe8e4df47150da19
rtf-objdata-decoded RTF \objdata at offset 0x16C0E 1486 bytes