Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 3a3a4165f6e4845d…

MALICIOUS

RTF / .DOC

934.9 KB
MD5: 84db82889d53879931a4551c5c81619b SHA-1: 29d3908cadf8833d5dfe8f46235fc332f16883af SHA-256: 3a3a4165f6e4845d27dcee1345e65abc27af1fbd2a9acb2e675faa02dd3dbe5f
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution

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 'Enable editing', a common technique for malware droppers to bypass security settings and execute embedded content.

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_off0005b471.bin
f1e0140c67637511b4e3abc6a5b47b0cd91f0ff6b19d9cfabf87fd3a8d0d7da4
rtf-objdata-decoded RTF \objdata at offset 0x5B471 3724 bytes