Analysis

  • max time kernel
    150s
  • max time network
    144s
  • 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, 09:45

General

  • Target

    G9876545678009876.exe

  • Size

    757KB

  • MD5

    6696d37cf0b9b65fd9fc58934d79c9cb

  • SHA1

    6c75525f455c341e936ec64546fc4d9bfe52ee81

  • SHA256

    2db991b9ae725ec59f9a29654e4c5f8d2bf363662cfa8d271a8692fea4883744

  • SHA512

    b9db5f1832b7a6d046c029204d6061e13b1e4b1d3e1a0117a7f51d03aa08b6a5f97be2036cba93ceb17a4f558c4ddfd580a80185d9c8446818b854ebe1749a18

  • SSDEEP

    12288:HDWMD9ehE+uDneLBQt20dup/20AQBOLdxD4N1fahKDZncwk6pvxT0K0jlyOJN9R4:FeVZ27zZPdnjImBOQXU

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.175.229.139:8087

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-IZFV1M

  • 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.

  • Drops startup file 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\G9876545678009876.exe
    "C:\Users\Admin\AppData\Local\Temp\G9876545678009876.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:652
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\G9876545678009876.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
      2⤵
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2252
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
      2⤵
        PID:4204
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4204 -s 512
          3⤵
          • Program crash
          PID:3948
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4204 -ip 4204
      1⤵
        PID:864
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
        1⤵
          PID:4480
        • C:\Windows\System32\svchost.exe
          C:\Windows\System32\svchost.exe -k UnistackSvcGroup
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4324

        Network

              MITRE ATT&CK Matrix

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nzed5zf0.vvl.ps1

                Filesize

                60B

                MD5

                d17fe0a3f47be24a6453e9ef58c94641

                SHA1

                6ab83620379fc69f80c0242105ddffd7d98d5d9d

                SHA256

                96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                SHA512

                5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

              • memory/652-1-0x0000000074D10000-0x00000000754C0000-memory.dmp

                Filesize

                7.7MB

              • memory/652-3-0x0000000004A90000-0x0000000004B3E000-memory.dmp

                Filesize

                696KB

              • memory/652-2-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

                Filesize

                64KB

              • memory/652-4-0x0000000005170000-0x0000000005714000-memory.dmp

                Filesize

                5.6MB

              • memory/652-5-0x0000000004C60000-0x0000000004CF2000-memory.dmp

                Filesize

                584KB

              • memory/652-6-0x0000000004D00000-0x0000000004D9C000-memory.dmp

                Filesize

                624KB

              • memory/652-0-0x0000000000030000-0x00000000000F4000-memory.dmp

                Filesize

                784KB

              • memory/652-32-0x0000000074D10000-0x00000000754C0000-memory.dmp

                Filesize

                7.7MB

              • memory/652-27-0x0000000004B80000-0x0000000004B88000-memory.dmp

                Filesize

                32KB

              • memory/2252-43-0x0000000006CE0000-0x0000000006CFA000-memory.dmp

                Filesize

                104KB

              • memory/2252-7-0x0000000002F10000-0x0000000002F46000-memory.dmp

                Filesize

                216KB

              • memory/2252-12-0x0000000005840000-0x0000000005862000-memory.dmp

                Filesize

                136KB

              • memory/2252-13-0x00000000058E0000-0x0000000005946000-memory.dmp

                Filesize

                408KB

              • memory/2252-14-0x00000000061D0000-0x0000000006236000-memory.dmp

                Filesize

                408KB

              • memory/2252-11-0x0000000005AA0000-0x00000000060C8000-memory.dmp

                Filesize

                6.2MB

              • memory/2252-24-0x0000000006240000-0x0000000006594000-memory.dmp

                Filesize

                3.3MB

              • memory/2252-25-0x0000000006810000-0x000000000682E000-memory.dmp

                Filesize

                120KB

              • memory/2252-26-0x0000000006850000-0x000000000689C000-memory.dmp

                Filesize

                304KB

              • memory/2252-10-0x0000000002EC0000-0x0000000002ED0000-memory.dmp

                Filesize

                64KB

              • memory/2252-48-0x0000000074D10000-0x00000000754C0000-memory.dmp

                Filesize

                7.7MB

              • memory/2252-9-0x0000000002EC0000-0x0000000002ED0000-memory.dmp

                Filesize

                64KB

              • memory/2252-42-0x00000000077D0000-0x0000000007866000-memory.dmp

                Filesize

                600KB

              • memory/2252-44-0x0000000006D80000-0x0000000006DA2000-memory.dmp

                Filesize

                136KB

              • memory/2252-8-0x0000000074D10000-0x00000000754C0000-memory.dmp

                Filesize

                7.7MB

              • memory/4204-41-0x0000000000430000-0x00000000004B2000-memory.dmp

                Filesize

                520KB

              • memory/4204-36-0x0000000000430000-0x00000000004B2000-memory.dmp

                Filesize

                520KB

              • memory/4204-28-0x0000000000430000-0x00000000004B2000-memory.dmp

                Filesize

                520KB

              • memory/4324-65-0x0000024614790000-0x00000246147A0000-memory.dmp

                Filesize

                64KB

              • memory/4324-90-0x000002461CDB0000-0x000002461CDB1000-memory.dmp

                Filesize

                4KB

              • memory/4324-81-0x000002461CD80000-0x000002461CD81000-memory.dmp

                Filesize

                4KB

              • memory/4324-82-0x000002461CDB0000-0x000002461CDB1000-memory.dmp

                Filesize

                4KB

              • memory/4324-83-0x000002461CDB0000-0x000002461CDB1000-memory.dmp

                Filesize

                4KB

              • memory/4324-84-0x000002461CDB0000-0x000002461CDB1000-memory.dmp

                Filesize

                4KB

              • memory/4324-85-0x000002461CDB0000-0x000002461CDB1000-memory.dmp

                Filesize

                4KB

              • memory/4324-86-0x000002461CDB0000-0x000002461CDB1000-memory.dmp

                Filesize

                4KB

              • memory/4324-87-0x000002461CDB0000-0x000002461CDB1000-memory.dmp

                Filesize

                4KB

              • memory/4324-88-0x000002461CDB0000-0x000002461CDB1000-memory.dmp

                Filesize

                4KB

              • memory/4324-89-0x000002461CDB0000-0x000002461CDB1000-memory.dmp

                Filesize

                4KB

              • memory/4324-49-0x0000024614690000-0x00000246146A0000-memory.dmp

                Filesize

                64KB

              • memory/4324-91-0x000002461CDB0000-0x000002461CDB1000-memory.dmp

                Filesize

                4KB

              • memory/4324-92-0x000002461C9D0000-0x000002461C9D1000-memory.dmp

                Filesize

                4KB

              • memory/4324-93-0x000002461C9C0000-0x000002461C9C1000-memory.dmp

                Filesize

                4KB

              • memory/4324-95-0x000002461C9D0000-0x000002461C9D1000-memory.dmp

                Filesize

                4KB

              • memory/4324-98-0x000002461C9C0000-0x000002461C9C1000-memory.dmp

                Filesize

                4KB

              • memory/4324-101-0x000002461C900000-0x000002461C901000-memory.dmp

                Filesize

                4KB

              • memory/4324-113-0x000002461CB00000-0x000002461CB01000-memory.dmp

                Filesize

                4KB

              • memory/4324-115-0x000002461CB10000-0x000002461CB11000-memory.dmp

                Filesize

                4KB

              • memory/4324-116-0x000002461CB10000-0x000002461CB11000-memory.dmp

                Filesize

                4KB