Analysis

  • max time kernel
    151s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    06/05/2023, 22:15

General

  • Target

    6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b.exe

  • Size

    145KB

  • MD5

    2ef95efdbedb353a82497ab63aa39067

  • SHA1

    a7784438c0ca3e37d63fc409435f6a5e96f73f41

  • SHA256

    6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b

  • SHA512

    1c053e93ffb29b7ef556e898650e447e8f3c101e5eb491fdd68adebc98434745b69fabf959db3d5fb0993b2be8c06f448d0b031de88024d7a4d37fdcab8dbfad

  • SSDEEP

    3072:X3gonQnBpzMo4JPj5hMVXUgbRZlIwTqeq+3r7E4sf65NiJtmghrOy7BCRIVCNfD0:nDnyMVIZLT

Malware Config

Extracted

Family

remcos

Botnet

QUOTE

C2

172.93.164.93:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Explorers.exe

  • copy_folder

    Explorers

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-8S6SMR

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Explorers

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • UAC bypass 3 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 10 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 58 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b.exe
    "C:\Users\Admin\AppData\Local\Temp\6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMQAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1744
    • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
      "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Mvhddbbjwgdqlpsquote .pdf"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1616
    • C:\Users\Admin\AppData\Local\Temp\6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b.exe
      C:\Users\Admin\AppData\Local\Temp\6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b.exe
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1636
      • C:\Windows\SysWOW64\cmd.exe
        /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:840
        • C:\Windows\SysWOW64\reg.exe
          C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
          4⤵
          • UAC bypass
          • Modifies registry key
          PID:1936
      • C:\Users\Admin\AppData\Roaming\Explorers\Explorers.exe
        "C:\Users\Admin\AppData\Roaming\Explorers\Explorers.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2044
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMQAwAA==
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1552
        • C:\Users\Admin\AppData\Roaming\Explorers\Explorers.exe
          C:\Users\Admin\AppData\Roaming\Explorers\Explorers.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of WriteProcessMemory
          PID:1856
          • C:\Windows\SysWOW64\cmd.exe
            /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1540
            • C:\Windows\SysWOW64\reg.exe
              C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
              6⤵
              • UAC bypass
              • Modifies registry key
              PID:888

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\Mvhddbbjwgdqlpsquote .pdf

          Filesize

          95KB

          MD5

          b39397d02b8cdafec5e6ea4f98210a76

          SHA1

          44dc7358e5540457d3c2527c45f943ae12024df2

          SHA256

          cbad00d956559d07d590b06652062e43c6e786b3506e3c3fafcda962ea5c59ac

          SHA512

          afbcaca434a99b91ed6abbe83ebd9763c5345febb76f134ee030a63c0768c87a684dbc7063048d8629e62a62b321b44220921a759ffce516a26128e39f1eb22d

        • C:\Users\Admin\AppData\Roaming\Explorers\Explorers.exe

          Filesize

          145KB

          MD5

          2ef95efdbedb353a82497ab63aa39067

          SHA1

          a7784438c0ca3e37d63fc409435f6a5e96f73f41

          SHA256

          6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b

          SHA512

          1c053e93ffb29b7ef556e898650e447e8f3c101e5eb491fdd68adebc98434745b69fabf959db3d5fb0993b2be8c06f448d0b031de88024d7a4d37fdcab8dbfad

        • C:\Users\Admin\AppData\Roaming\Explorers\Explorers.exe

          Filesize

          145KB

          MD5

          2ef95efdbedb353a82497ab63aa39067

          SHA1

          a7784438c0ca3e37d63fc409435f6a5e96f73f41

          SHA256

          6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b

          SHA512

          1c053e93ffb29b7ef556e898650e447e8f3c101e5eb491fdd68adebc98434745b69fabf959db3d5fb0993b2be8c06f448d0b031de88024d7a4d37fdcab8dbfad

        • C:\Users\Admin\AppData\Roaming\Explorers\Explorers.exe

          Filesize

          145KB

          MD5

          2ef95efdbedb353a82497ab63aa39067

          SHA1

          a7784438c0ca3e37d63fc409435f6a5e96f73f41

          SHA256

          6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b

          SHA512

          1c053e93ffb29b7ef556e898650e447e8f3c101e5eb491fdd68adebc98434745b69fabf959db3d5fb0993b2be8c06f448d0b031de88024d7a4d37fdcab8dbfad

        • C:\Users\Admin\AppData\Roaming\Explorers\Explorers.exe

          Filesize

          145KB

          MD5

          2ef95efdbedb353a82497ab63aa39067

          SHA1

          a7784438c0ca3e37d63fc409435f6a5e96f73f41

          SHA256

          6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b

          SHA512

          1c053e93ffb29b7ef556e898650e447e8f3c101e5eb491fdd68adebc98434745b69fabf959db3d5fb0993b2be8c06f448d0b031de88024d7a4d37fdcab8dbfad

        • C:\Users\Admin\AppData\Roaming\Gltkij\Bvsqlki.exe

          Filesize

          145KB

          MD5

          0745d9564ddcac4884b38533c5a9d100

          SHA1

          bdadeab21c3b716dff235995fe627fd473367c73

          SHA256

          76729054429e44b77122ea89246165164e80e50af549203248688f593449bca8

          SHA512

          523d6201ae4621142fb1ace2dac12ef6c05bedda9c7eb2a54c4561c34b73f500029b12d92fdb2533560075b62af6ac2970d64077bb2c5459c5bb970664a2f572

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\49EXMP0ZUTLP2ZR36A6A.temp

          Filesize

          7KB

          MD5

          2ebeb524da732d4dfff22685b9dadaa2

          SHA1

          03be4acc826b49a7b8a185313d4aa5d7c51ccb25

          SHA256

          b5f69f93ca69d5c0ce6f59fb5c80a1fbba46572954452b4c237fe1c83aa2a7be

          SHA512

          8fa62776e72d35628ae779e107e8c0a60d8de6afde6387149c6d20fb1fe2eef593d11408971754b835261e0fce12f8d560ae21cb0eb27070704022b364e78c99

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

          Filesize

          7KB

          MD5

          2ebeb524da732d4dfff22685b9dadaa2

          SHA1

          03be4acc826b49a7b8a185313d4aa5d7c51ccb25

          SHA256

          b5f69f93ca69d5c0ce6f59fb5c80a1fbba46572954452b4c237fe1c83aa2a7be

          SHA512

          8fa62776e72d35628ae779e107e8c0a60d8de6afde6387149c6d20fb1fe2eef593d11408971754b835261e0fce12f8d560ae21cb0eb27070704022b364e78c99

        • \Users\Admin\AppData\Roaming\Explorers\Explorers.exe

          Filesize

          145KB

          MD5

          2ef95efdbedb353a82497ab63aa39067

          SHA1

          a7784438c0ca3e37d63fc409435f6a5e96f73f41

          SHA256

          6432e96629806652156594eb8c7c5af3cc397dc7b5d871787db5be71ff6cdd1b

          SHA512

          1c053e93ffb29b7ef556e898650e447e8f3c101e5eb491fdd68adebc98434745b69fabf959db3d5fb0993b2be8c06f448d0b031de88024d7a4d37fdcab8dbfad

        • memory/1552-100-0x00000000026E0000-0x0000000002720000-memory.dmp

          Filesize

          256KB

        • memory/1552-99-0x00000000026E0000-0x0000000002720000-memory.dmp

          Filesize

          256KB

        • memory/1636-71-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1636-77-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1636-88-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1636-72-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1636-73-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1636-74-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1636-75-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1636-76-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1636-78-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1636-82-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1636-79-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/1636-80-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1744-63-0x0000000002720000-0x0000000002760000-memory.dmp

          Filesize

          256KB

        • memory/1744-65-0x0000000002720000-0x0000000002760000-memory.dmp

          Filesize

          256KB

        • memory/1744-67-0x0000000002720000-0x0000000002760000-memory.dmp

          Filesize

          256KB

        • memory/1744-66-0x0000000002720000-0x0000000002760000-memory.dmp

          Filesize

          256KB

        • memory/1744-64-0x0000000002720000-0x0000000002760000-memory.dmp

          Filesize

          256KB

        • memory/1744-62-0x0000000002720000-0x0000000002760000-memory.dmp

          Filesize

          256KB

        • memory/1856-118-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1856-124-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1856-129-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1856-128-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1856-127-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1856-126-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1856-123-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1856-122-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1856-114-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/1856-121-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1856-119-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1856-120-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/1944-54-0x0000000000E50000-0x0000000000E7A000-memory.dmp

          Filesize

          168KB

        • memory/1944-55-0x00000000006B0000-0x00000000006F0000-memory.dmp

          Filesize

          256KB

        • memory/1944-56-0x00000000006B0000-0x00000000006F0000-memory.dmp

          Filesize

          256KB

        • memory/1944-57-0x0000000007490000-0x00000000075CE000-memory.dmp

          Filesize

          1.2MB

        • memory/1944-58-0x0000000000470000-0x00000000004CE000-memory.dmp

          Filesize

          376KB

        • memory/1944-59-0x00000000059C0000-0x0000000005A52000-memory.dmp

          Filesize

          584KB

        • memory/2044-92-0x0000000000B00000-0x0000000000B40000-memory.dmp

          Filesize

          256KB

        • memory/2044-95-0x0000000000B00000-0x0000000000B40000-memory.dmp

          Filesize

          256KB

        • memory/2044-91-0x0000000000F90000-0x0000000000FBA000-memory.dmp

          Filesize

          168KB