Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/03/2024, 03:14

General

  • Target
    5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb.exe
  • Size 998KB
  • Sample240327-drccraed8y
  • SHA256 5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • 194.147.140.180:1987

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-FRNTO2

  • 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.

  • 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).

  • 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 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\5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb.exe
    "C:\Users\Admin\AppData\Local\Temp\5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4952
    • 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\5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3840
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XPTpFDOlta.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4676
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XPTpFDOlta" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5EAA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:5072
    • C:\Users\Admin\AppData\Local\Temp\5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb.exe
      "C:\Users\Admin\AppData\Local\Temp\5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:3692

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        logs.dat

        • Path C:\ProgramData\remcos\logs.dat
        • Size 144B
        • SHA256 6555796fe3070b8db9f3b36e8d9669bdd07f7fc1951e7459a53323e4d4b9a7b0
        • 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 6656364c5dfcd95d3c51221e39ed4d74afd9a35491b17604be9dac5bf83610b6
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_x3ujfzh1.svy.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_x3ujfzh1.svy.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp5EAA.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp5EAA.tmp
        • Size 1KB
        • SHA256 ac47b4e2cd894b2f4f3c68442ddc9998ce533b176f0ae329a3688f7ae9f4549a
        • MD5 SHA1 SHA512

        memory/3692-122-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-43-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-160-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-159-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-157-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-156-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-154-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-153-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-150-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-149-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-145-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-144-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-141-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-140-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-138-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-137-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-135-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-133-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-132-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-45-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-46-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-131-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-49-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-129-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-128-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-53-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-51-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-55-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-126-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-125-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-121-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-118-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-117-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-116-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-114-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-112-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-111-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-109-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-108-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-106-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-104-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3692-103-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3840-52-0x00000000061D0000-0x00000000061EE000-memory.dmp

        memory/3840-60-0x000000007EF30000-0x000000007EF40000-memory.dmp

        memory/3840-14-0x0000000002900000-0x0000000002936000-memory.dmp

        memory/3840-91-0x0000000007860000-0x000000000787A000-memory.dmp

        memory/3840-92-0x0000000007840000-0x0000000007848000-memory.dmp

        memory/3840-15-0x0000000074850000-0x0000000075000000-memory.dmp

        memory/3840-16-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

        memory/3840-18-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

        memory/3840-99-0x0000000074850000-0x0000000075000000-memory.dmp

        memory/3840-17-0x0000000005520000-0x0000000005B48000-memory.dmp

        memory/3840-21-0x0000000005330000-0x0000000005352000-memory.dmp

        memory/3840-84-0x0000000007B60000-0x00000000081DA000-memory.dmp

        memory/3840-90-0x0000000007760000-0x0000000007774000-memory.dmp

        memory/3840-88-0x0000000007720000-0x0000000007731000-memory.dmp

        memory/3840-70-0x00000000071B0000-0x00000000071CE000-memory.dmp

        memory/3840-79-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

        memory/3840-54-0x0000000006280000-0x00000000062CC000-memory.dmp

        memory/3840-58-0x00000000750B0000-0x00000000750FC000-memory.dmp

        memory/4676-56-0x00000000076A0000-0x00000000076D2000-memory.dmp

        memory/4676-24-0x0000000005EB0000-0x0000000005F16000-memory.dmp

        memory/4676-59-0x00000000750B0000-0x00000000750FC000-memory.dmp

        memory/4676-57-0x000000007F690000-0x000000007F6A0000-memory.dmp

        memory/4676-95-0x0000000074850000-0x0000000075000000-memory.dmp

        memory/4676-86-0x00000000078A0000-0x00000000078AA000-memory.dmp

        memory/4676-82-0x00000000076F0000-0x0000000007793000-memory.dmp

        memory/4676-83-0x0000000005060000-0x0000000005070000-memory.dmp

        memory/4676-85-0x0000000007830000-0x000000000784A000-memory.dmp

        memory/4676-87-0x0000000007AB0000-0x0000000007B46000-memory.dmp

        memory/4676-44-0x0000000005F20000-0x0000000006274000-memory.dmp

        memory/4676-19-0x0000000074850000-0x0000000075000000-memory.dmp

        memory/4676-20-0x0000000005060000-0x0000000005070000-memory.dmp

        memory/4676-80-0x0000000005060000-0x0000000005070000-memory.dmp

        memory/4676-23-0x0000000005E40000-0x0000000005EA6000-memory.dmp

        memory/4676-89-0x0000000007A60000-0x0000000007A6E000-memory.dmp

        memory/4952-5-0x0000000005700000-0x000000000570A000-memory.dmp

        memory/4952-4-0x00000000057F0000-0x0000000005800000-memory.dmp

        memory/4952-1-0x0000000074850000-0x0000000075000000-memory.dmp

        memory/4952-48-0x0000000074850000-0x0000000075000000-memory.dmp

        memory/4952-2-0x0000000005B10000-0x00000000060B4000-memory.dmp

        memory/4952-3-0x0000000005640000-0x00000000056D2000-memory.dmp

        memory/4952-0-0x0000000000B60000-0x0000000000C60000-memory.dmp

        memory/4952-6-0x00000000057E0000-0x00000000057F2000-memory.dmp

        memory/4952-9-0x0000000009840000-0x00000000098DC000-memory.dmp

        memory/4952-8-0x0000000007170000-0x0000000007230000-memory.dmp

        memory/4952-7-0x0000000005A00000-0x0000000005A0C000-memory.dmp