Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/06/2024, 01:00

General

  • Target
    013e39d10c6ec3d7f91105322804e5ec7d6cff966e44659fc568957f243e67a1.exe
  • Size 1004KB
  • Sample240628-bcp9ysvcql
  • SHA256 013e39d10c6ec3d7f91105322804e5ec7d6cff966e44659fc568957f243e67a1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • CHAMP

C2
  • 94.156.68.105:7256

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-YE5X3X

  • 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\013e39d10c6ec3d7f91105322804e5ec7d6cff966e44659fc568957f243e67a1.exe
    "C:\Users\Admin\AppData\Local\Temp\013e39d10c6ec3d7f91105322804e5ec7d6cff966e44659fc568957f243e67a1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1804
    • 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\013e39d10c6ec3d7f91105322804e5ec7d6cff966e44659fc568957f243e67a1.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1512
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\exHuLszcIvOjxW.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2788
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\exHuLszcIvOjxW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp67F1.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3504
    • C:\Users\Admin\AppData\Local\Temp\013e39d10c6ec3d7f91105322804e5ec7d6cff966e44659fc568957f243e67a1.exe
      "C:\Users\Admin\AppData\Local\Temp\013e39d10c6ec3d7f91105322804e5ec7d6cff966e44659fc568957f243e67a1.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:4684

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        logs.dat

        • Path C:\ProgramData\remcos\logs.dat
        • Size 144B
        • SHA256 cf3acc30872d27648166b033b9b0f6e2815c2691b4ea9867efee4d8c075f58f5
        • MD5 SHA1 SHA512

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 fd3019a8be101e04a0dc4f38e822afba677aedd7aa7e2404d1e4340938e597f1
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_ylpkjb0u.ch0.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ylpkjb0u.ch0.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp67F1.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp67F1.tmp
        • Size 1KB
        • SHA256 3106c0436ced4462873a21e036b5d7551c295bc3f7d38cfc19667cdd88b4463a
        • MD5 SHA1 SHA512

        memory/1512-26-0x0000000005FE0000-0x0000000006046000-memory.dmp

        memory/1512-21-0x0000000075000000-0x00000000757B0000-memory.dmp

        memory/1512-77-0x00000000758B0000-0x00000000758FC000-memory.dmp

        memory/1512-92-0x0000000007BA0000-0x0000000007BAE000-memory.dmp

        memory/1512-95-0x0000000007C90000-0x0000000007C98000-memory.dmp

        memory/1512-25-0x0000000005F70000-0x0000000005FD6000-memory.dmp

        memory/1512-102-0x0000000075000000-0x00000000757B0000-memory.dmp

        memory/1512-22-0x0000000005ED0000-0x0000000005EF2000-memory.dmp

        memory/1512-17-0x0000000002D40000-0x0000000002D76000-memory.dmp

        memory/1512-18-0x0000000075000000-0x00000000757B0000-memory.dmp

        memory/1512-19-0x00000000058A0000-0x0000000005EC8000-memory.dmp

        memory/1512-20-0x0000000075000000-0x00000000757B0000-memory.dmp

        memory/1804-12-0x0000000007490000-0x0000000007550000-memory.dmp

        memory/1804-3-0x0000000005780000-0x0000000005812000-memory.dmp

        memory/1804-5-0x0000000075000000-0x00000000757B0000-memory.dmp

        memory/1804-4-0x0000000005830000-0x0000000005B84000-memory.dmp

        memory/1804-0-0x000000007500E000-0x000000007500F000-memory.dmp

        memory/1804-11-0x0000000007440000-0x000000000744C000-memory.dmp

        memory/1804-10-0x0000000007A90000-0x0000000007AA0000-memory.dmp

        memory/1804-6-0x0000000005DB0000-0x0000000005DBA000-memory.dmp

        memory/1804-2-0x0000000005DE0000-0x0000000006384000-memory.dmp

        memory/1804-1-0x0000000000CB0000-0x0000000000DB0000-memory.dmp

        memory/1804-49-0x0000000075000000-0x00000000757B0000-memory.dmp

        memory/1804-9-0x00000000078A0000-0x0000000007978000-memory.dmp

        memory/1804-8-0x00000000064D0000-0x000000000656C000-memory.dmp

        memory/1804-7-0x0000000006900000-0x0000000006E2C000-memory.dmp

        memory/2788-56-0x0000000006100000-0x000000000614C000-memory.dmp

        memory/2788-23-0x0000000075000000-0x00000000757B0000-memory.dmp

        memory/2788-55-0x00000000060E0000-0x00000000060FE000-memory.dmp

        memory/2788-36-0x0000000075000000-0x00000000757B0000-memory.dmp

        memory/2788-101-0x0000000075000000-0x00000000757B0000-memory.dmp

        memory/2788-94-0x0000000007750000-0x000000000776A000-memory.dmp

        memory/2788-93-0x0000000007650000-0x0000000007664000-memory.dmp

        memory/2788-62-0x00000000070A0000-0x00000000070D2000-memory.dmp

        memory/2788-74-0x00000000072E0000-0x0000000007383000-memory.dmp

        memory/2788-73-0x00000000066C0000-0x00000000066DE000-memory.dmp

        memory/2788-63-0x00000000758B0000-0x00000000758FC000-memory.dmp

        memory/2788-91-0x0000000007610000-0x0000000007621000-memory.dmp

        memory/2788-87-0x0000000007A50000-0x00000000080CA000-memory.dmp

        memory/2788-88-0x0000000007410000-0x000000000742A000-memory.dmp

        memory/2788-89-0x0000000007480000-0x000000000748A000-memory.dmp

        memory/2788-90-0x0000000007690000-0x0000000007726000-memory.dmp

        memory/4684-57-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-109-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-61-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-60-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-54-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-48-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-46-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-59-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-53-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-50-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-58-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-110-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-117-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-118-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-125-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-126-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-133-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4684-134-0x0000000000400000-0x0000000000482000-memory.dmp