Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/12/2023, 14:00

General

  • Target

    9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4.exe

  • Size

    549KB

  • MD5

    29fbf68632718884833492e5a21f3f87

  • SHA1

    e4ae52d257e9265568a24e1165bf1b13aa8c8d90

  • SHA256

    9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4

  • SHA512

    821bafb4fcad712aa9cb3d7a58c71894a9692198cffb4038def13b2bbac877395c18ca3a44ea111f426682eceac793b510666b418b4586f01c014c1ab3718bec

  • SSDEEP

    12288:I4Actcny0/xPCOgVq+PFhmu01D15/dUaUO+nYj0L41c38BcDqV5:9AIcn3wOyqSFhHcFUaKYjNc3Wp

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

95.214.27.6:3348

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-CJTO0J

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4.exe
    "C:\Users\Admin\AppData\Local\Temp\9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3524
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c powershell set-mppreference -exclusionpath C:\
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3008
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell set-mppreference -exclusionpath C:\
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4696
    • C:\Users\Admin\AppData\Local\Temp\9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4.exe
      C:\Users\Admin\AppData\Local\Temp\9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2632

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          1bb9814893854714abedcc46c2e5e29b

          SHA1

          6b5b06103a381c0bcd12b82b214df9ba48652ae9

          SHA256

          bb4fe8cac594005ad4f4c55443c311f65a161379ea2fdb0358cf23b7f4fb26d9

          SHA512

          812621062fa8cef003f5a4edcde0b8199072dda4b56b58bdde53dd39ff581e49e45361d22f60a33eebc4b63b3e7360b2fca84af33ba518de666e875c0edeb6a6

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5vr235qf.rfi.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/2632-92-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-78-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-72-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-73-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-91-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-105-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-104-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-13-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-10-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-99-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-97-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-14-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-19-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-71-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-79-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-22-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-24-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-86-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-85-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2632-26-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-3-0x0000000005110000-0x0000000005120000-memory.dmp

          Filesize

          64KB

        • memory/3524-6-0x0000000006500000-0x0000000006AA4000-memory.dmp

          Filesize

          5.6MB

        • memory/3524-2-0x0000000005120000-0x000000000519E000-memory.dmp

          Filesize

          504KB

        • memory/3524-17-0x0000000075210000-0x00000000759C0000-memory.dmp

          Filesize

          7.7MB

        • memory/3524-1-0x0000000075210000-0x00000000759C0000-memory.dmp

          Filesize

          7.7MB

        • memory/3524-5-0x0000000005210000-0x000000000525C000-memory.dmp

          Filesize

          304KB

        • memory/3524-0-0x0000000000710000-0x000000000079E000-memory.dmp

          Filesize

          568KB

        • memory/3524-4-0x00000000051A0000-0x000000000520E000-memory.dmp

          Filesize

          440KB

        • memory/4696-41-0x0000000073650000-0x000000007369C000-memory.dmp

          Filesize

          304KB

        • memory/4696-52-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

          Filesize

          64KB

        • memory/4696-53-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

          Filesize

          64KB

        • memory/4696-54-0x00000000075B0000-0x0000000007653000-memory.dmp

          Filesize

          652KB

        • memory/4696-56-0x00000000078D0000-0x00000000078EA000-memory.dmp

          Filesize

          104KB

        • memory/4696-55-0x0000000007F20000-0x000000000859A000-memory.dmp

          Filesize

          6.5MB

        • memory/4696-57-0x0000000007940000-0x000000000794A000-memory.dmp

          Filesize

          40KB

        • memory/4696-58-0x0000000007B50000-0x0000000007BE6000-memory.dmp

          Filesize

          600KB

        • memory/4696-59-0x0000000007AD0000-0x0000000007AE1000-memory.dmp

          Filesize

          68KB

        • memory/4696-60-0x0000000007B00000-0x0000000007B0E000-memory.dmp

          Filesize

          56KB

        • memory/4696-61-0x0000000007B10000-0x0000000007B24000-memory.dmp

          Filesize

          80KB

        • memory/4696-62-0x0000000007C10000-0x0000000007C2A000-memory.dmp

          Filesize

          104KB

        • memory/4696-63-0x0000000007BF0000-0x0000000007BF8000-memory.dmp

          Filesize

          32KB

        • memory/4696-66-0x0000000075210000-0x00000000759C0000-memory.dmp

          Filesize

          7.7MB

        • memory/4696-51-0x0000000006B90000-0x0000000006BAE000-memory.dmp

          Filesize

          120KB

        • memory/4696-39-0x000000007F100000-0x000000007F110000-memory.dmp

          Filesize

          64KB

        • memory/4696-40-0x0000000007570000-0x00000000075A2000-memory.dmp

          Filesize

          200KB

        • memory/4696-38-0x00000000065D0000-0x000000000661C000-memory.dmp

          Filesize

          304KB

        • memory/4696-37-0x0000000006580000-0x000000000659E000-memory.dmp

          Filesize

          120KB

        • memory/4696-23-0x0000000005D00000-0x0000000005D66000-memory.dmp

          Filesize

          408KB

        • memory/4696-36-0x0000000005FD0000-0x0000000006324000-memory.dmp

          Filesize

          3.3MB

        • memory/4696-25-0x0000000005F60000-0x0000000005FC6000-memory.dmp

          Filesize

          408KB

        • memory/4696-21-0x00000000055E0000-0x0000000005602000-memory.dmp

          Filesize

          136KB

        • memory/4696-16-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

          Filesize

          64KB

        • memory/4696-15-0x0000000005660000-0x0000000005C88000-memory.dmp

          Filesize

          6.2MB

        • memory/4696-8-0x0000000004FF0000-0x0000000005026000-memory.dmp

          Filesize

          216KB

        • memory/4696-11-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

          Filesize

          64KB

        • memory/4696-9-0x0000000075210000-0x00000000759C0000-memory.dmp

          Filesize

          7.7MB