Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 10:12

General

  • Target

    869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe

  • Size

    604KB

  • MD5

    ffc880a6448b251eee7f03809bf0a1bf

  • SHA1

    09e75e38d588b0e99a3f6f85b2dc4a3eebe4ee08

  • SHA256

    869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d

  • SHA512

    21dbc92495d2afa76e2e0b7243586ce70889e6cf1240222f1c75aab217df9a0287f9b9b5f3c754011ecfec411c2677c3fd091bcb2b620205c2c97db564b7b180

  • SSDEEP

    12288:O+DbgZB778Qed59T3C6g9XltKMYicJgTx5bx4OVEIHDe2RZQioKEAmD:3gZBS9TbgoMpcJ+Tbe7Ye2nOK

Score
10/10

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

NHS

C2

185.189.112.19:30311

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    nhs

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_lejjhxgdnt

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • 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 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).

  • 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 16 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\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe
    "C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1928
    • 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\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2192
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RqlVhjJtK.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4500
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RqlVhjJtK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB1EB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4336
    • C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe
      "C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"
      2⤵
        PID:1808
      • C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe
        "C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:1908

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      63825afab7120b36e64d97ed2cf0c172

      SHA1

      6928f3570a3fac140ed166f66359873f7ee3a740

      SHA256

      1a134f42a20f953f040e02e60c90148bee52c33bbd472a632eeae03b1f8e828d

      SHA512

      2901eb1eface66f52a674cea2f4b0f761711d86db460069704e4b01c85f2284792f23e7bbcb7a97854880b29531d86be6de5f1352ebdb78466ffe173fd26247b

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ed03rnwa.gfz.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpB1EB.tmp

      Filesize

      1KB

      MD5

      1705d1b9a73959b690c9254ade83a2ae

      SHA1

      e84f64fcfd26efc3855546605762972b6ff7937c

      SHA256

      8a560024000a3c013af92204cd4a2d64c905d05199ddb5374ff39004fd4b3d15

      SHA512

      2981ad50701769e057615366fbb5028c0c78b0bc5edc5768c82130d052573640a8d5ff930e71d5606695db142c10b52bd39359f41fcaeecf475a1255d4a38d7d

    • memory/1908-48-0x0000000000400000-0x0000000000417000-memory.dmp

      Filesize

      92KB

    • memory/1908-49-0x0000000000400000-0x0000000000417000-memory.dmp

      Filesize

      92KB

    • memory/1908-51-0x0000000000400000-0x0000000000417000-memory.dmp

      Filesize

      92KB

    • memory/1928-10-0x0000000008F00000-0x0000000008F9C000-memory.dmp

      Filesize

      624KB

    • memory/1928-5-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1928-9-0x00000000066B0000-0x0000000006710000-memory.dmp

      Filesize

      384KB

    • memory/1928-8-0x0000000006670000-0x0000000006686000-memory.dmp

      Filesize

      88KB

    • memory/1928-11-0x000000007484E000-0x000000007484F000-memory.dmp

      Filesize

      4KB

    • memory/1928-12-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1928-6-0x0000000006AD0000-0x0000000006AE8000-memory.dmp

      Filesize

      96KB

    • memory/1928-7-0x0000000006660000-0x000000000666E000-memory.dmp

      Filesize

      56KB

    • memory/1928-0-0x000000007484E000-0x000000007484F000-memory.dmp

      Filesize

      4KB

    • memory/1928-54-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1928-4-0x0000000005480000-0x000000000548A000-memory.dmp

      Filesize

      40KB

    • memory/1928-3-0x00000000054F0000-0x0000000005582000-memory.dmp

      Filesize

      584KB

    • memory/1928-2-0x0000000005AA0000-0x0000000006044000-memory.dmp

      Filesize

      5.6MB

    • memory/1928-1-0x0000000000B30000-0x0000000000BCC000-memory.dmp

      Filesize

      624KB

    • memory/2192-79-0x0000000007130000-0x00000000071D3000-memory.dmp

      Filesize

      652KB

    • memory/2192-20-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/2192-24-0x0000000005760000-0x00000000057C6000-memory.dmp

      Filesize

      408KB

    • memory/2192-18-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/2192-17-0x0000000004970000-0x00000000049A6000-memory.dmp

      Filesize

      216KB

    • memory/2192-25-0x0000000005880000-0x00000000058E6000-memory.dmp

      Filesize

      408KB

    • memory/2192-91-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/2192-40-0x0000000005940000-0x0000000005C94000-memory.dmp

      Filesize

      3.3MB

    • memory/2192-21-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/2192-19-0x0000000005040000-0x0000000005668000-memory.dmp

      Filesize

      6.2MB

    • memory/2192-55-0x0000000005F30000-0x0000000005F4E000-memory.dmp

      Filesize

      120KB

    • memory/2192-56-0x0000000005F60000-0x0000000005FAC000-memory.dmp

      Filesize

      304KB

    • memory/2192-87-0x00000000075B0000-0x00000000075CA000-memory.dmp

      Filesize

      104KB

    • memory/2192-58-0x00000000750F0000-0x000000007513C000-memory.dmp

      Filesize

      304KB

    • memory/2192-57-0x0000000006EE0000-0x0000000006F12000-memory.dmp

      Filesize

      200KB

    • memory/2192-23-0x00000000056C0000-0x00000000056E2000-memory.dmp

      Filesize

      136KB

    • memory/2192-77-0x0000000006EC0000-0x0000000006EDE000-memory.dmp

      Filesize

      120KB

    • memory/2192-86-0x00000000074B0000-0x00000000074C4000-memory.dmp

      Filesize

      80KB

    • memory/2192-85-0x00000000074A0000-0x00000000074AE000-memory.dmp

      Filesize

      56KB

    • memory/4500-82-0x0000000007920000-0x000000000792A000-memory.dmp

      Filesize

      40KB

    • memory/4500-83-0x0000000007B30000-0x0000000007BC6000-memory.dmp

      Filesize

      600KB

    • memory/4500-84-0x0000000007AB0000-0x0000000007AC1000-memory.dmp

      Filesize

      68KB

    • memory/4500-80-0x0000000007EF0000-0x000000000856A000-memory.dmp

      Filesize

      6.5MB

    • memory/4500-81-0x00000000078B0000-0x00000000078CA000-memory.dmp

      Filesize

      104KB

    • memory/4500-59-0x00000000750F0000-0x000000007513C000-memory.dmp

      Filesize

      304KB

    • memory/4500-88-0x0000000007BD0000-0x0000000007BD8000-memory.dmp

      Filesize

      32KB

    • memory/4500-22-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4500-44-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4500-41-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4500-95-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB