General

  • Target
    Velocity.rar
  • Size 3.6MB
  • Sample260705-za94cabt5p
  • SHA256 efdcdb48f680ae7749380178f635b68930090903168b3ea2f9866853b95297af
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • sheetrat

Campaign
  • Sheet_nbszmiyxtax

C2
  • portbuddy.dev:43188

Targets

    • Target
      Velocity/Velocity.exe
    • Size 4.0MB
    • SHA256 3d77113574d8cd3f13222ea44173f933b7bb00ab22d6899aa4c954eef98fd325
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detect SalatStealer payload

    • Detect Xworm Payload

    • Detects Sheetrat obfuscated V1.8 and higher

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Family: Sheetrat, NonEuclid rat

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Family: salatstealer

      SalatStealer is a stealer that takes sceenshot written in Golang.

    • Modifies WinLogon for persistence

    • Downloads MZ/PE file

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks