Malicious RTF — malware analysis report

Static analysis result for SHA-256 5f52767c3605c1f4…

MALICIOUS

RTF

4.1 KB First seen: 2020-05-25
MD5: 8dff45b315cc3bddf4061f001d0a2369 SHA-1: b2ac374d3c5495888cf8bbe9757be720a2927173 SHA-256: 5f52767c3605c1f418a954640d9852daff695a538a4e2c87668722ed48a94186
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains embedded OLE object data and an \objupdate directive, indicating an attempt to exploit a vulnerability for client execution. The document body consists of repetitive numeric strings, providing no contextual information about the lure. No specific malware family is identifiable from the available evidence.

Heuristics 2

  • \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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0000006e.bin rtf-objdata-decoded RTF \objdata at offset 0x6E 1821 bytes
SHA-256: a37079d644c0954dc8c0ae5ef93738629a833d89e68deefd242355fc99ccae5f

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