Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-10-2024 12:23

General

  • Target

    P04562345.bat.exe

  • Size

    1.1MB

  • MD5

    d29616351ef9a129027188527865b943

  • SHA1

    29b47295801378189b842715da51f31c12a3331b

  • SHA256

    1f2244ccbe6c3cde3824c8b801a300393bebd9c9aa1c4538be0b67a5e761f075

  • SHA512

    cd05a6d085a7623b3e5e26b6e5f333709811d57554341708e1d71f92f9b6811ca5e91e948296f09017283475377c7aceb8e41f09a355dddf74e6ccbf4b58c024

  • SSDEEP

    24576:VeYzaZsWKMgptI3AeFGuD+x5ou+qxzc0xh276F6+E9:MZDYptCAef17A2O09

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:3000

154.216.17.185:6902

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-L2X7AM

  • 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 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 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\P04562345.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\P04562345.bat.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4656
    • 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\P04562345.bat.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3036
    • C:\Users\Admin\AppData\Local\Temp\P04562345.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\P04562345.bat.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    acde91da83a50e1d7552af3d4c6c7968

    SHA1

    93cba8cadd9c0a33ab8d1d93f4bfc047fba7c533

    SHA256

    1b6701b9b8fe3f76d8734e79396be525e722723caa0e1b9c5f17e3f9fb198ebc

    SHA512

    777e825a52e91e611bdf6388c14efe62fa02bc18971301d6d9cc59d9fef2125aef081e627ddeef12a25b9d437ba958e96d96ac916454def2f29b9bfe7545c360

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hl0jxz1w.4e5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/3036-64-0x00000000077D0000-0x00000000077E4000-memory.dmp

    Filesize

    80KB

  • memory/3036-22-0x00000000003E0000-0x000000000044D000-memory.dmp

    Filesize

    436KB

  • memory/3036-59-0x0000000007790000-0x00000000077A1000-memory.dmp

    Filesize

    68KB

  • memory/3036-55-0x0000000007600000-0x000000000760A000-memory.dmp

    Filesize

    40KB

  • memory/3036-54-0x0000000007590000-0x00000000075AA000-memory.dmp

    Filesize

    104KB

  • memory/3036-53-0x0000000007BD0000-0x000000000824A000-memory.dmp

    Filesize

    6.5MB

  • memory/3036-52-0x0000000007430000-0x00000000074D3000-memory.dmp

    Filesize

    652KB

  • memory/3036-51-0x0000000006810000-0x000000000682E000-memory.dmp

    Filesize

    120KB

  • memory/3036-41-0x00000000715C0000-0x000000007160C000-memory.dmp

    Filesize

    304KB

  • memory/3036-40-0x0000000006830000-0x0000000006862000-memory.dmp

    Filesize

    200KB

  • memory/3036-63-0x00000000077C0000-0x00000000077CE000-memory.dmp

    Filesize

    56KB

  • memory/3036-71-0x00000000003E0000-0x000000000044D000-memory.dmp

    Filesize

    436KB

  • memory/3036-68-0x00000000078B0000-0x00000000078B8000-memory.dmp

    Filesize

    32KB

  • memory/3036-65-0x00000000078D0000-0x00000000078EA000-memory.dmp

    Filesize

    104KB

  • memory/3036-38-0x0000000006250000-0x000000000626E000-memory.dmp

    Filesize

    120KB

  • memory/3036-37-0x0000000005D70000-0x00000000060C4000-memory.dmp

    Filesize

    3.3MB

  • memory/3036-26-0x0000000005B90000-0x0000000005BF6000-memory.dmp

    Filesize

    408KB

  • memory/3036-58-0x0000000007810000-0x00000000078A6000-memory.dmp

    Filesize

    600KB

  • memory/3036-24-0x00000000053D0000-0x00000000059F8000-memory.dmp

    Filesize

    6.2MB

  • memory/3036-21-0x0000000004CA0000-0x0000000004CD6000-memory.dmp

    Filesize

    216KB

  • memory/3036-25-0x0000000005AF0000-0x0000000005B12000-memory.dmp

    Filesize

    136KB

  • memory/3036-32-0x0000000005C00000-0x0000000005C66000-memory.dmp

    Filesize

    408KB

  • memory/3036-39-0x00000000062B0000-0x00000000062FC000-memory.dmp

    Filesize

    304KB

  • memory/4656-23-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4656-0-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

    Filesize

    4KB

  • memory/4656-3-0x0000000005A20000-0x0000000005AB2000-memory.dmp

    Filesize

    584KB

  • memory/4656-2-0x0000000005F30000-0x00000000064D4000-memory.dmp

    Filesize

    5.6MB

  • memory/4656-1-0x0000000000ED0000-0x0000000000FE0000-memory.dmp

    Filesize

    1.1MB

  • memory/4656-10-0x000000000A8D0000-0x000000000A96C000-memory.dmp

    Filesize

    624KB

  • memory/4656-9-0x0000000006D00000-0x0000000006DC0000-memory.dmp

    Filesize

    768KB

  • memory/4656-8-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4656-7-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

    Filesize

    4KB

  • memory/4656-6-0x0000000005DF0000-0x0000000005E08000-memory.dmp

    Filesize

    96KB

  • memory/4656-5-0x00000000059F0000-0x00000000059FA000-memory.dmp

    Filesize

    40KB

  • memory/4656-4-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4988-16-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-56-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-60-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-61-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-62-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-92-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-15-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-20-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-12-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-73-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-76-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-77-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-14-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-84-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-85-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-93-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-11-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-100-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4988-101-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB