Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-08-2024 23:01

General

  • Target

    ImageLogger.exe

  • Size

    483KB

  • MD5

    f5955b4d18efb1325dcc8ad9778076fe

  • SHA1

    b42b488f84d6d39430655f7bbb67f35b48e7e5b8

  • SHA256

    5f0e4772e7b804ea1fc60ebff11d9539c60398f968114c73d47de0b14b075f50

  • SHA512

    b4886d0e3fde068e47ae02f242423e86c91b70df3896c6d4935992e6dbc4a1034360369c279bec37fb605b25e6fb89d2c06722d48081009722784bef9a1395d5

  • SSDEEP

    6144:oTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZBAXccrdT4:oTlrYw1RUh3NFn+N5WfIQIjbs/ZB+T4

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

software-julia.gl.at.ply.gg:17106

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Windows.exe

  • copy_folder

    Windows

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-E22CTC

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • 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 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 6 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 9 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ImageLogger.exe
    "C:\Users\Admin\AppData\Local\Temp\ImageLogger.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4492
    • 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:1524
      • 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:2772
    • C:\ProgramData\Windows\Windows.exe
      "C:\ProgramData\Windows\Windows.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2312
      • 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:2716
        • 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:4404
      • \??\c:\program files (x86)\internet explorer\iexplore.exe
        "c:\program files (x86)\internet explorer\iexplore.exe"
        3⤵
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3436
        • 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
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3108
          • 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
            5⤵
            • UAC bypass
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:3460
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          4⤵
            PID:2328

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Windows\Windows.exe

      Filesize

      483KB

      MD5

      f5955b4d18efb1325dcc8ad9778076fe

      SHA1

      b42b488f84d6d39430655f7bbb67f35b48e7e5b8

      SHA256

      5f0e4772e7b804ea1fc60ebff11d9539c60398f968114c73d47de0b14b075f50

      SHA512

      b4886d0e3fde068e47ae02f242423e86c91b70df3896c6d4935992e6dbc4a1034360369c279bec37fb605b25e6fb89d2c06722d48081009722784bef9a1395d5

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      547f39fdac3556e848440c5f04b9a183

      SHA1

      1e846e2b344bf81269902f7a04565be227ec1890

      SHA256

      93080afd0d643b4e2f2b07c5f169671c132075c19ad8e43089afd5ab86bf95f3

      SHA512

      8699c55b16c70368851c7973603a263b3d1738139e488b9cb2019bf40bf84533ead68922e2633166238a3a93d84d65ec8393a7a3a32efe905d7b551b8609111e

    • memory/2328-44-0x00000000004F0000-0x0000000000572000-memory.dmp

      Filesize

      520KB

    • memory/2328-45-0x00000000004F0000-0x0000000000572000-memory.dmp

      Filesize

      520KB

    • memory/3436-33-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-35-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-37-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-36-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-41-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-46-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-34-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-48-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-50-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-51-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-53-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-55-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-54-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-56-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-61-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-60-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-62-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-63-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-65-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-68-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-67-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-71-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-72-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-73-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-74-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-77-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-78-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-81-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-82-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-85-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-86-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-89-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-90-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-94-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-93-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-97-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-98-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-101-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-102-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-105-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-106-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-110-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-109-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-114-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-113-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-116-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-115-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-119-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB

    • memory/3436-120-0x0000000000550000-0x00000000005D2000-memory.dmp

      Filesize

      520KB