PUA - Nimgrab Execution

Title: PUA - Nimgrab Execution
Status: test
Description:Detects the usage of nimgrab, a tool bundled with the Nim programming framework and used for downloading files.
References:
  -https://github.com/redcanaryco/atomic-red-team/blob/28d190330fe44de6ff4767fc400cc10fa7cd6540/atomics/T1105/T1105.md
Author: frack113
Date: 2022-08-28
modified:2024-11-23
Tags:

• -'attack.command-and-control'
• -'attack.t1105'

Logsource:

• category: process_creation
• product: windows

Detection:
  selection_name:
    Image|endswith: '\nimgrab.exe'
  selection_hashes:
    Hashes|contains:
      -'MD5=2DD44C3C29D667F5C0EF5F9D7C7FFB8B'
      -'SHA256=F266609E91985F0FE3E31C5E8FAEEEC4FFA5E0322D8B6F15FE69F4C5165B9559'
      -'IMPHASH=C07FDDD21D123EA9B3A08EEF44AAAC45'

  condition:1 of selection_*
Falsepositives:
  -Legitimate use of Nim on a developer systems
Level: high