Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231025-en
  • resource tags

    arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
  • submitted
    04/12/2023, 10:24

General

  • Target

    FAT986545600986.exe

  • Size

    1.0MB

  • MD5

    470249dbfe3ac7f1d16ea4a52ef76fb3

  • SHA1

    984ef38fbfa4efd6b9310a07c4a6b2be63e328bf

  • SHA256

    f77532a0a209676025270db283534fc63ba0780415e8273d670fc6d1bc4bf1f5

  • SHA512

    ec2edf6140afcf84719a8a2d53303ee86fa6b32406b0fc99db6d87dcc162577b9766f88e5fb7643e4cb4fb09c5431c5ab3d8029800eab02aa1b81914e3faba39

  • SSDEEP

    24576:h34/up+pJ1sRbSz55MlrTQF4ZriIqBT3peD:h38PJ1QSz55CsIiIqBs

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.175.229.139:8087

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-IZFV1M

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe
    "C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2164
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2308
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zulqgtKXtL.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2612
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zulqgtKXtL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7EE0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2584
    • C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe
      "C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2456

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          c9a2f1a2076a398dc36f585a95e6c197

          SHA1

          39de5490af12ac48da1832073b1cd78e04ceacc7

          SHA256

          0d7e2034d0bada5cca730b93707507dcec04c90f256fe06cb58494140bd08577

          SHA512

          5852031b90cb604a99e209e9cd35b9aab51fad311e393a721b3c78bd12df0399ab054a78eda45caa8008d410996dc095f6702c8d8bd440f2a0738884d63f377d

        • C:\Users\Admin\AppData\Local\Temp\tmp7EE0.tmp

          Filesize

          1KB

          MD5

          043992e2deb84bb2e6c840c24c140a8f

          SHA1

          6e900c18873461500f895c1304e89ffaa8965ee9

          SHA256

          fe04f07042d088a15fc7bbd7c544e8d12d3960bff866c7f321fc0831536cab39

          SHA512

          639be05d1a015d9bb4f44811bb359acf6d5057f34dcea5aa8e1d14ff11b024bd268383ee14fc7d55d59d4dcbd8c63bb601b4bba987d6a80a4240ef08d7b29cd6

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\PB5T9U2IZS7KUYQZU8CB.temp

          Filesize

          7KB

          MD5

          5275564cbe096a091c773ba995de1a03

          SHA1

          5359a41e0de067115a0e64ddbc1c50c1d65f62fd

          SHA256

          d1d740d1460d5bee3d998018be8fdaf346f7461e1ed2714e8b21a26c44e80b45

          SHA512

          3bad9b61b305638c38b01414a321b949c9362f11d3390cce5dc4659a64255908760bfc0fa19ec455aa433c880e1e1202db3cb9d298a1688adf819d51e01b21e6

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

          Filesize

          7KB

          MD5

          5275564cbe096a091c773ba995de1a03

          SHA1

          5359a41e0de067115a0e64ddbc1c50c1d65f62fd

          SHA256

          d1d740d1460d5bee3d998018be8fdaf346f7461e1ed2714e8b21a26c44e80b45

          SHA512

          3bad9b61b305638c38b01414a321b949c9362f11d3390cce5dc4659a64255908760bfc0fa19ec455aa433c880e1e1202db3cb9d298a1688adf819d51e01b21e6

        • memory/2164-4-0x0000000000370000-0x0000000000378000-memory.dmp

          Filesize

          32KB

        • memory/2164-5-0x00000000005B0000-0x00000000005BA000-memory.dmp

          Filesize

          40KB

        • memory/2164-6-0x0000000005440000-0x00000000054F8000-memory.dmp

          Filesize

          736KB

        • memory/2164-40-0x0000000073F90000-0x000000007467E000-memory.dmp

          Filesize

          6.9MB

        • memory/2164-3-0x0000000000590000-0x00000000005A8000-memory.dmp

          Filesize

          96KB

        • memory/2164-2-0x0000000004EF0000-0x0000000004F30000-memory.dmp

          Filesize

          256KB

        • memory/2164-0-0x00000000008E0000-0x00000000009F0000-memory.dmp

          Filesize

          1.1MB

        • memory/2164-1-0x0000000073F90000-0x000000007467E000-memory.dmp

          Filesize

          6.9MB

        • memory/2308-59-0x000000006ECF0000-0x000000006F29B000-memory.dmp

          Filesize

          5.7MB

        • memory/2308-55-0x0000000002520000-0x0000000002560000-memory.dmp

          Filesize

          256KB

        • memory/2308-51-0x0000000002520000-0x0000000002560000-memory.dmp

          Filesize

          256KB

        • memory/2308-49-0x000000006ECF0000-0x000000006F29B000-memory.dmp

          Filesize

          5.7MB

        • memory/2308-46-0x000000006ECF0000-0x000000006F29B000-memory.dmp

          Filesize

          5.7MB

        • memory/2456-57-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-84-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-37-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-33-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-39-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-41-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-43-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-44-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-31-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-45-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-104-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-103-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-29-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-102-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-27-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-101-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-99-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-54-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-25-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-56-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-23-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-98-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-21-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-60-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-62-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-63-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-64-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-65-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-67-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-68-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-69-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-71-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-72-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-73-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-74-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-76-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-77-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-78-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-79-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-19-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-81-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-82-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-83-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2456-86-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-87-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-88-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-89-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-91-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-92-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-93-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-94-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-96-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2456-97-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2612-58-0x000000006ECF0000-0x000000006F29B000-memory.dmp

          Filesize

          5.7MB

        • memory/2612-53-0x0000000001F20000-0x0000000001F60000-memory.dmp

          Filesize

          256KB

        • memory/2612-52-0x0000000001F20000-0x0000000001F60000-memory.dmp

          Filesize

          256KB

        • memory/2612-50-0x000000006ECF0000-0x000000006F29B000-memory.dmp

          Filesize

          5.7MB

        • memory/2612-48-0x0000000001F20000-0x0000000001F60000-memory.dmp

          Filesize

          256KB

        • memory/2612-47-0x000000006ECF0000-0x000000006F29B000-memory.dmp

          Filesize

          5.7MB