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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/09/2024, 01:13

General

  • Target

    26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe

  • Size

    1.0MB

  • MD5

    3e8c08e25ead11c971b7d6d0c6992d8b

  • SHA1

    c9f3bd9dc092463a405967b7c9237522f3db0a94

  • SHA256

    26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6

  • SHA512

    0d9b74577c90530af134b86b2669968a39c8bf0885826021d8f6fe228e8a66974f1df929b4940f4a5ff8b024554f6bdf40e6559670204f876a0f074de5300598

  • SSDEEP

    24576:N+1bAypceDrbuuMGsMc2DOqqwrEKUfZlEq+HLUUz4:0VOeDrCpfMZSZfjfZqq+o/

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.

  • 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).

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe
    "C:\Users\Admin\AppData\Local\Temp\26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3728
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QWURykYcjiLE.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:472
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QWURykYcjiLE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9B27.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3888
    • C:\Users\Admin\AppData\Local\Temp\26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe
      "C:\Users\Admin\AppData\Local\Temp\26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1120

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oqa4bgl3.pph.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp9B27.tmp

    Filesize

    1KB

    MD5

    2be42ca5c99792a28e2b47c6ad1d7198

    SHA1

    e8dc6a6c417dc8fc4d40ae4c46910f2c5a3a1a5b

    SHA256

    e319f40657adcaeb13bc68b75ce3cefaeb53d5ff0890e0baf77e89e478c08820

    SHA512

    a43524d87fa529d08daeb3df0e9e57c5dd832af1b31eb8d87cd8805931c9714d4094a0aba7ce94c4b93f732476ed87d7a4cd363d65d8281629acf06f3677a056

  • memory/472-43-0x00000000063E0000-0x000000000642C000-memory.dmp

    Filesize

    304KB

  • memory/472-64-0x0000000007A40000-0x0000000007A5A000-memory.dmp

    Filesize

    104KB

  • memory/472-42-0x00000000063C0000-0x00000000063DE000-memory.dmp

    Filesize

    120KB

  • memory/472-68-0x0000000075060000-0x0000000075810000-memory.dmp

    Filesize

    7.7MB

  • memory/472-65-0x0000000007A20000-0x0000000007A28000-memory.dmp

    Filesize

    32KB

  • memory/472-22-0x0000000005D10000-0x0000000005D76000-memory.dmp

    Filesize

    408KB

  • memory/472-63-0x0000000007940000-0x0000000007954000-memory.dmp

    Filesize

    80KB

  • memory/472-62-0x0000000007930000-0x000000000793E000-memory.dmp

    Filesize

    56KB

  • memory/472-61-0x0000000007900000-0x0000000007911000-memory.dmp

    Filesize

    68KB

  • memory/472-60-0x0000000007980000-0x0000000007A16000-memory.dmp

    Filesize

    600KB

  • memory/472-59-0x0000000007770000-0x000000000777A000-memory.dmp

    Filesize

    40KB

  • memory/472-17-0x0000000002B20000-0x0000000002B56000-memory.dmp

    Filesize

    216KB

  • memory/472-18-0x0000000075060000-0x0000000075810000-memory.dmp

    Filesize

    7.7MB

  • memory/472-19-0x0000000005570000-0x0000000005B98000-memory.dmp

    Filesize

    6.2MB

  • memory/472-58-0x0000000007700000-0x000000000771A000-memory.dmp

    Filesize

    104KB

  • memory/472-24-0x0000000075060000-0x0000000075810000-memory.dmp

    Filesize

    7.7MB

  • memory/472-21-0x0000000005510000-0x0000000005532000-memory.dmp

    Filesize

    136KB

  • memory/472-23-0x0000000005D80000-0x0000000005DE6000-memory.dmp

    Filesize

    408KB

  • memory/472-57-0x0000000007D40000-0x00000000083BA000-memory.dmp

    Filesize

    6.5MB

  • memory/472-31-0x0000000075060000-0x0000000075810000-memory.dmp

    Filesize

    7.7MB

  • memory/472-56-0x00000000075D0000-0x0000000007673000-memory.dmp

    Filesize

    652KB

  • memory/472-55-0x00000000069A0000-0x00000000069BE000-memory.dmp

    Filesize

    120KB

  • memory/472-45-0x000000006FAD0000-0x000000006FB1C000-memory.dmp

    Filesize

    304KB

  • memory/472-44-0x0000000007390000-0x00000000073C2000-memory.dmp

    Filesize

    200KB

  • memory/1120-29-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-79-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-81-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-71-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-74-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-26-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-28-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-80-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-25-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-69-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-78-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-77-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-76-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-75-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-73-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-72-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1120-70-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3728-7-0x0000000007FE0000-0x0000000007FFA000-memory.dmp

    Filesize

    104KB

  • memory/3728-5-0x0000000075060000-0x0000000075810000-memory.dmp

    Filesize

    7.7MB

  • memory/3728-8-0x000000007506E000-0x000000007506F000-memory.dmp

    Filesize

    4KB

  • memory/3728-0-0x000000007506E000-0x000000007506F000-memory.dmp

    Filesize

    4KB

  • memory/3728-6-0x0000000005010000-0x000000000501A000-memory.dmp

    Filesize

    40KB

  • memory/3728-41-0x0000000075060000-0x0000000075810000-memory.dmp

    Filesize

    7.7MB

  • memory/3728-4-0x00000000059A0000-0x0000000005CF4000-memory.dmp

    Filesize

    3.3MB

  • memory/3728-9-0x0000000075060000-0x0000000075810000-memory.dmp

    Filesize

    7.7MB

  • memory/3728-10-0x0000000006400000-0x000000000640E000-memory.dmp

    Filesize

    56KB

  • memory/3728-11-0x00000000065B0000-0x000000000666E000-memory.dmp

    Filesize

    760KB

  • memory/3728-12-0x00000000064F0000-0x000000000658C000-memory.dmp

    Filesize

    624KB

  • memory/3728-2-0x00000000053F0000-0x0000000005994000-memory.dmp

    Filesize

    5.6MB

  • memory/3728-1-0x0000000000280000-0x0000000000388000-memory.dmp

    Filesize

    1.0MB

  • memory/3728-3-0x0000000004E40000-0x0000000004ED2000-memory.dmp

    Filesize

    584KB