Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 df150a5f4e55998c…

MALICIOUS

RTF / .DOC

279.4 KB First seen: 2024-05-21
MD5: e57e6083429cae24a0f7aef576a0facc SHA-1: ca682ad3207f76af62964f95c5d99f8370659318 SHA-256: df150a5f4e55998c6688495acf39c9eefbfef604406d8347f1ca1c21a0ea115b
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 specific scripts or URLs were extracted, but the heuristics strongly suggest a malicious OLE object execution.

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_off0001610a.bin
ab1cb546e9fcaec0a4dd2aabae6318d532f77f9770f01fba4593695b8264a049
rtf-objdata-decoded RTF \objdata at offset 0x1610A 1462 bytes