General

  • Target
    XBinderOutput.exe
  • Size 827KB
  • Sample260716-1btnesev4n
  • SHA256 b1f4158f00e0bce795a110d6f4840e14b1a7b99b1b6b6f41175f5ed639f87f8a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xbinder

Mutex
  • 9el22sDlo2FIqEFpe

Attributes
  • primary_drop_directory

    %Temp%

  • primary_execute

    true

  • primary_hidden_file

    false

  • primary_resource_name

    cheaasd.exe

  • secondary_drop_directory

    %Temp%

  • secondary_execute

    true

  • secondary_hidden_file

    false

  • secondary_resource_name

    HolyCheck.exe

Extracted

Family
  • sheetrat

Version
  • 1.8

C2
  • 91.92.42.94:1105

Targets

    • Target
      XBinderOutput.exe
    • Size 827KB
    • SHA256 b1f4158f00e0bce795a110d6f4840e14b1a7b99b1b6b6f41175f5ed639f87f8a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • 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: XBinder

      XBinder is a crypter and loader delivering a wide variety of malware, written in C#.

    • Modifies WinLogon for persistence

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • Event Triggered Execution: AppInit DLLs

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Network Share Discovery

      Attempt to gather information on host network.

    • UPX packed file

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

MITRE ATT&CK Enterprise v16

Tasks