General

  • Target

    MBSetup.exe

  • Size

    2.5MB

  • Sample

    230313-rad2xacf91

  • MD5

    6b2068e1d2027a8c44a0292220496eaf

  • SHA1

    64f09b577b56c5bc8bbe48d6f3c28f2ae0ebcc9b

  • SHA256

    45f080107243e8515b501ae5081e68b15e02e11c64b09a856074676058e946a9

  • SHA512

    d062cff15fbac58b53aef7d165a94fae82feb7387398846bd3f18471be2488e51d8a12657d058fad8a7d60199adac7af2a72dcb138acd9c14fbe564519e15234

  • SSDEEP

    24576:NxluWCEkx/gITyj4HYTvmngOezyr3yNtGs0wd/ZL8Ug+JwNZgCxiIsCA2flywBuz:0WFcGOng5yEGs0wxZN2DxiIq2d3d0

Malware Config

Targets

    • Target

      MBSetup.exe

    • Size

      2.5MB

    • MD5

      6b2068e1d2027a8c44a0292220496eaf

    • SHA1

      64f09b577b56c5bc8bbe48d6f3c28f2ae0ebcc9b

    • SHA256

      45f080107243e8515b501ae5081e68b15e02e11c64b09a856074676058e946a9

    • SHA512

      d062cff15fbac58b53aef7d165a94fae82feb7387398846bd3f18471be2488e51d8a12657d058fad8a7d60199adac7af2a72dcb138acd9c14fbe564519e15234

    • SSDEEP

      24576:NxluWCEkx/gITyj4HYTvmngOezyr3yNtGs0wd/ZL8Ug+JwNZgCxiIsCA2flywBuz:0WFcGOng5yEGs0wxZN2DxiIq2d3d0

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Registers COM server for autorun

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Remote Desktop Protocol

1
T1076

Collection

Data from Local System

1
T1005

Tasks