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Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04/09/2024, 07:30

General

  • Target

    0955e1c717cfb3cc4b97d2e22f2e1f6493b6afa62f94e8d068baa3946f47f820.exe

  • Size

    932KB

  • MD5

    64e16402e0b5cb51390ae3045c20a7df

  • SHA1

    a5d496972c0344e5d72272d03daa5fcadabcc87d

  • SHA256

    0955e1c717cfb3cc4b97d2e22f2e1f6493b6afa62f94e8d068baa3946f47f820

  • SHA512

    5e2c69c2922591ee05d1d272e6acea984a8b5d9332f07629ecb3c14e06a516b61ec460b0b438f29155d995c39aa14e4c1eaa7b3233dc6fc8104a9f2f6bb197bc

  • SSDEEP

    24576:zYQactqtW214Y3PTp8au7Yf7nP0zChutXNBxRv6N:zS1d3Pl8aueEqutDxJ

Malware Config

Extracted

Family

remcos

Botnet

5764576

C2

172.93.218.178:45667

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

    765-XJJE0J

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Suspicious use of SetThreadContext 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.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0955e1c717cfb3cc4b97d2e22f2e1f6493b6afa62f94e8d068baa3946f47f820.exe
    "C:\Users\Admin\AppData\Local\Temp\0955e1c717cfb3cc4b97d2e22f2e1f6493b6afa62f94e8d068baa3946f47f820.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tNkpyCqWiCcy.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2284
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tNkpyCqWiCcy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC4E5.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2904
    • C:\Users\Admin\AppData\Local\Temp\0955e1c717cfb3cc4b97d2e22f2e1f6493b6afa62f94e8d068baa3946f47f820.exe
      "C:\Users\Admin\AppData\Local\Temp\0955e1c717cfb3cc4b97d2e22f2e1f6493b6afa62f94e8d068baa3946f47f820.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2776

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC4E5.tmp

    Filesize

    1KB

    MD5

    e59735ad3cb39256e98f4c7537221c71

    SHA1

    96300b63b39c9eef6d1cd592075390c5f6d4e478

    SHA256

    b3d53059f8ca574f7aa0ed08568af69fcc3d53c70084d83d0871f443b46a4ec1

    SHA512

    3cdf299a2fde640878da417717f8c4257eb539a8076ac69f5046ed17b194de501a9c46b139b80ea5f2387c612fd11f9e36539cd12c025fea5c0e2ced28339915

  • memory/2240-34-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2240-1-0x00000000009F0000-0x0000000000ADC000-memory.dmp

    Filesize

    944KB

  • memory/2240-2-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2240-3-0x0000000000490000-0x00000000004AA000-memory.dmp

    Filesize

    104KB

  • memory/2240-4-0x00000000740CE000-0x00000000740CF000-memory.dmp

    Filesize

    4KB

  • memory/2240-5-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2240-6-0x00000000004C0000-0x00000000004CE000-memory.dmp

    Filesize

    56KB

  • memory/2240-7-0x0000000004C40000-0x0000000004CFE000-memory.dmp

    Filesize

    760KB

  • memory/2240-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

    Filesize

    4KB

  • memory/2776-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-35-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-30-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2776-21-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-25-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-23-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-19-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-17-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-13-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-16-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-40-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-43-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-44-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-45-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-46-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-47-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2776-48-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB