Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 4c94121c4d8c2e44…

MALICIOUS

RTF / .DOC

13.5 KB First seen: 2022-05-23
MD5: 61e9d7e4a05ecdf4978e149d972ab7cf SHA-1: 0da2f45cbde8e444b09ae744831a81442cb91321 SHA-256: 4c94121c4d8c2e44321b87dd03b372809a3011a25fe8d16a019c6ee06b779160
121 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The RTF document contains OLE object data and an \objupdate directive, indicating it's designed to embed and activate an OLE object. This is a common technique for delivering malicious payloads. No specific family could be identified, and the document body was truncated, limiting further analysis of the exact lure.

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 2 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00001c75.bin
1aff76866bb80293bc097371a9a306ff4156da147f52ad183c2bee746f32db08
rtf-objdata-decoded RTF \objdata at offset 0x1C75 1989 bytes