Malicious RTF — malware analysis report

Static analysis result for SHA-256 446a5724b394934f…

MALICIOUS

RTF

5.5 KB First seen: 2023-01-18
MD5: e15d1fa8796f858db58ff5a560357e06 SHA-1: f30296a675a202c047a30cb4c9ee29ce8aa33f7e SHA-256: 446a5724b394934f99f026ea5dcf4532e90f54b26e71a2f3ca2c601bded2ad02
60 Risk Score

Malware Insights

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

The RTF file contains OLE object data and an \objupdate directive, indicating an attempt to exploit a vulnerability and activate embedded objects. This suggests the file is designed to deliver a malicious payload, likely through a macro or exploit within the OLE object. No specific family could be identified, and the document body was unreadable.

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_off00000836.bin
8bbfbe65266b51d4b1e8037d47baf75e5194bfe4f1d42de133df47b4eb875b78
rtf-objdata-decoded RTF \objdata at offset 0x836 1732 bytes