Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/07/2024, 05:54

General

  • Target
    875aa8aeeb28f3646c22208934098420N.exe
  • Size 78KB
  • Sample240726-gmavxazeln
  • SHA256 da8bcbbbf398154b18c1f9d8a4c2799af67aff835ee82c8f65365376d236b74c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • MetamorpherRAT

    Metamorpherrat is a hacking tool that has been around for a while since 2013.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\875aa8aeeb28f3646c22208934098420N.exe
    "C:\Users\Admin\AppData\Local\Temp\875aa8aeeb28f3646c22208934098420N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4176
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\uvtfyu2c.cmdline"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3936
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES75AD.tmp" "C:\Users\Admin\AppData\Local\Temp\vbc278589D3FCAC4536B9294EF427B5E1D6.TMP"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3444
    • C:\Users\Admin\AppData\Local\Temp\tmp74E2.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp74E2.tmp.exe" C:\Users\Admin\AppData\Local\Temp\875aa8aeeb28f3646c22208934098420N.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:5016

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        RES75AD.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\RES75AD.tmp
        • Size 1KB
        • SHA256 fca61d753773f9231559bc54a0ca55ada8249c83f908aa39038574baf43dad44
        • MD5 SHA1 SHA512

        tmp74E2.tmp.exe

        • Path C:\Users\Admin\AppData\Local\Temp\tmp74E2.tmp.exe
        • Size 78KB
        • SHA256 6a9dc2666fa896e83a7b82f4cb3347de2153010ec8bf65afcadfad47a1b1fd28
        • MD5 SHA1 SHA512 SSDEEP

        uvtfyu2c.0.vb

        • Path C:\Users\Admin\AppData\Local\Temp\uvtfyu2c.0.vb
        • Size 14KB
        • SHA256 fe777f282201b2ecfd8f7efbf3356b95267e21483c4f8ff74c70a802fc1c1e64
        • MD5 SHA1 SHA512 SSDEEP

        uvtfyu2c.cmdline

        • Path C:\Users\Admin\AppData\Local\Temp\uvtfyu2c.cmdline
        • Size 266B
        • SHA256 cf4c8352e1a9ebd87a1d32bca124caeb55610c3c5f809c4b4e227c02a81cbdb5
        • MD5 SHA1 SHA512

        vbc278589D3FCAC4536B9294EF427B5E1D6.TMP

        • Path C:\Users\Admin\AppData\Local\Temp\vbc278589D3FCAC4536B9294EF427B5E1D6.TMP
        • Size 660B
        • SHA256 cc9b9be295634421d9d78389dbad5ae211b373276b42c6ecd78b032c311c3e50
        • MD5 SHA1 SHA512

        zCom.resources

        • Path C:\Users\Admin\AppData\Local\Temp\zCom.resources
        • Size 62KB
        • SHA256 b43ecda931e7af03f0768c905ed9fa82c03e41e566b1dff9960afc6b91ae5ab5
        • MD5 SHA1 SHA512 SSDEEP

        memory/3936-18-0x0000000075210000-0x00000000757C1000-memory.dmp

        memory/3936-9-0x0000000075210000-0x00000000757C1000-memory.dmp

        memory/4176-1-0x0000000075210000-0x00000000757C1000-memory.dmp

        memory/4176-2-0x0000000075210000-0x00000000757C1000-memory.dmp

        memory/4176-0-0x0000000075212000-0x0000000075213000-memory.dmp

        memory/4176-22-0x0000000075210000-0x00000000757C1000-memory.dmp

        memory/5016-23-0x0000000075210000-0x00000000757C1000-memory.dmp

        memory/5016-24-0x0000000075210000-0x00000000757C1000-memory.dmp

        memory/5016-25-0x0000000075210000-0x00000000757C1000-memory.dmp

        memory/5016-26-0x0000000075210000-0x00000000757C1000-memory.dmp

        memory/5016-27-0x0000000075210000-0x00000000757C1000-memory.dmp