Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 13:14

General

  • Target

    virus.exe

  • Size

    483KB

  • MD5

    cbab80f7f17d6c3830a17d7fee29cd30

  • SHA1

    701eb7c9e2b662728f23dfaa34e634f11847aad7

  • SHA256

    eea9c58429ef1465aa760fada958b5d580e3ea0c2a40a7c11de9f5518f661706

  • SHA512

    e5b0acbeadadb3e75e2b8aa4794ab5fabe41de92dabc46120c84c6e0000da55900eecd7d12f1bb1a392b0dc9dbcb1e97fa7bf54a8281e6ebb2ca100d2c91fb90

  • SSDEEP

    6144:wTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZBAXccrRT4:wTlrYw1RUh3NFn+N5WfIQIjbs/ZBKT4

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

mode-clusters.gl.at.ply.gg:36304

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    $77-Update of anti root

  • copy_folder

    WinDMRmanager

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %WinDir%\System32

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-W4O1LZ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • UAC bypass 3 TTPs 2 IoCs
  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 5 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Modifies registry class 1 IoCs
  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\virus.exe
    "C:\Users\Admin\AppData\Local\Temp\virus.exe"
    1⤵
    • Adds policy Run key to start application
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4516
    • C:\Windows\SysWOW64\cmd.exe
      /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4116
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • UAC bypass
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:2868
    • \??\c:\program files (x86)\internet explorer\iexplore.exe
      "c:\program files (x86)\internet explorer\iexplore.exe"
      2⤵
      • Adds policy Run key to start application
      • Deletes itself
      • Adds Run key to start application
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:808
      • C:\Windows\SysWOW64\cmd.exe
        /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4224
        • C:\Windows\SysWOW64\reg.exe
          C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
          4⤵
          • UAC bypass
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:3720
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:1412
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\pxjrqmhkaacgustizgc.vbs"
          3⤵
          • System Location Discovery: System Language Discovery
          PID:1124

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\pxjrqmhkaacgustizgc.vbs

      Filesize

      654B

      MD5

      f9903a94c05461ef865cd21d06b63a2f

      SHA1

      731f5328eb5461d1d6582f84ea1d7a3800e8758f

      SHA256

      d7ae25d8fe5a9c3bc85077dd2f22c017df803084978cf4a4c48a1aad37898ec5

      SHA512

      f1d8f1f63a6561119e7f1809e061ca8af05255da51e7f5ce6e08c3d8c91b3de117dc636d8c438add9895ed802ea105475d87f949a42d4598cea3305b56d415fe

    • C:\Windows\SysWOW64\WinDMRmanager\$77-Update of anti root

      Filesize

      483KB

      MD5

      cbab80f7f17d6c3830a17d7fee29cd30

      SHA1

      701eb7c9e2b662728f23dfaa34e634f11847aad7

      SHA256

      eea9c58429ef1465aa760fada958b5d580e3ea0c2a40a7c11de9f5518f661706

      SHA512

      e5b0acbeadadb3e75e2b8aa4794ab5fabe41de92dabc46120c84c6e0000da55900eecd7d12f1bb1a392b0dc9dbcb1e97fa7bf54a8281e6ebb2ca100d2c91fb90

    • memory/808-40-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-21-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-34-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-35-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-33-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-48-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-44-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-27-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-28-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-29-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-30-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-32-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-15-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-17-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-43-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-36-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-37-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-38-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-39-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-16-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-41-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/808-42-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/1412-23-0x0000000000670000-0x00000000006F2000-memory.dmp

      Filesize

      520KB

    • memory/1412-24-0x0000000000670000-0x00000000006F2000-memory.dmp

      Filesize

      520KB

    • memory/1412-26-0x0000000000670000-0x00000000006F2000-memory.dmp

      Filesize

      520KB

    • memory/1412-25-0x0000000000670000-0x00000000006F2000-memory.dmp

      Filesize

      520KB