Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2023, 21:14

General

  • Target

    $R6B2ZGV.exe

  • Size

    895KB

  • MD5

    7f32f76a211c294f6e280b5f6867f2b0

  • SHA1

    008da0b94b792b4d4810a000336a37651090e9ed

  • SHA256

    996fec4254ba09feade637d40971b6472912961128f6ad353ec4fe0405f0cc70

  • SHA512

    1ac208de202c91a038f468a0fba3f3b4f09fa92c4a1d21cca4eda21cf40fe99f245424e6f485327b232a23eaa444419efa96384c3b88f6b0106f81efdb7388c9

  • SSDEEP

    12288:Sk4lrraD+fm31WPSq3CgCDBPifM1TimdE/3OLjRyX/03xP46L9FI:Sk4lXPfm3gqzB6k1Ts/k2cxHL9F

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

167.114.189.33:2404

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-7ZDF66

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$R6B2ZGV.exe
    "C:\Users\Admin\AppData\Local\Temp\$R6B2ZGV.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2652
    • 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\$R6B2ZGV.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3100
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XpBeYEmkGU.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1128
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XpBeYEmkGU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1B5E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2060
    • C:\Users\Admin\AppData\Local\Temp\$R6B2ZGV.exe
      "C:\Users\Admin\AppData\Local\Temp\$R6B2ZGV.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:924

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          b442f149c3f66d6ecbe4702da1f482d2

          SHA1

          689d0f1a0408525a02721133ec3bc318b35fbadf

          SHA256

          002660185acfbab7ef08f34443bea9ca0475b5605658a3444fcb6ca595069e0e

          SHA512

          e68d08ac2537c99d0b744e47832da65a013c50cedf80eac323c499570541830609114fc7b0d1352bb9e41ca3dab72038652a6a5ec24e0564c3eb5b2cc9a844b1

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

          Filesize

          2KB

          MD5

          968cb9309758126772781b83adb8a28f

          SHA1

          8da30e71accf186b2ba11da1797cf67f8f78b47c

          SHA256

          92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

          SHA512

          4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          18KB

          MD5

          03fe1d12014fd5501d41b6875073ee2a

          SHA1

          63d84c2501b86daf02732007b818c1b43c304fb7

          SHA256

          fe9d0178e218c23a42380315a35d48ed61da77d09da990bae3a7803ba1ec7d52

          SHA512

          048c5b425df64c0e161ee3c6356e3e8dcd23df9b83b4570488a630064e3396ed47038f93abce33aeca1dbc548eab998b1a1b59100b69a3da375663f5963c5916

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zde0vsp1.dh1.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp1B5E.tmp

          Filesize

          1KB

          MD5

          979fbf3816c9686f80f5f3fbd7b3d8e5

          SHA1

          f69712c461b3be2723e10f518d6b39c292af3f5b

          SHA256

          8a03493de085beca894193e5d1a842b3e19f83b437d91e9cca06741d91ef6004

          SHA512

          46cabb0e99389d1edd53416132cc4860cb4e20d51566accea985a9503a5bbbbe46d26e5047a2a8b6b6f8bd9cf7bc21f4e0faade35e4658916e25236f4e2524e5

        • memory/924-107-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-52-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-116-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-109-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-108-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-26-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-121-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-122-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-127-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-115-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-42-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-36-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-33-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-129-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-32-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-25-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/924-30-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/1128-57-0x00000000057C0000-0x0000000005B14000-memory.dmp

          Filesize

          3.3MB

        • memory/1128-77-0x0000000006240000-0x000000000625E000-memory.dmp

          Filesize

          120KB

        • memory/1128-23-0x0000000004970000-0x0000000004980000-memory.dmp

          Filesize

          64KB

        • memory/1128-24-0x0000000004970000-0x0000000004980000-memory.dmp

          Filesize

          64KB

        • memory/1128-103-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/1128-22-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/1128-96-0x00000000072C0000-0x00000000072C8000-memory.dmp

          Filesize

          32KB

        • memory/1128-95-0x00000000072E0000-0x00000000072FA000-memory.dmp

          Filesize

          104KB

        • memory/1128-93-0x00000000071D0000-0x00000000071DE000-memory.dmp

          Filesize

          56KB

        • memory/1128-91-0x0000000007220000-0x00000000072B6000-memory.dmp

          Filesize

          600KB

        • memory/1128-90-0x0000000007010000-0x000000000701A000-memory.dmp

          Filesize

          40KB

        • memory/1128-88-0x00000000075E0000-0x0000000007C5A000-memory.dmp

          Filesize

          6.5MB

        • memory/1128-28-0x0000000004DA0000-0x0000000004DC2000-memory.dmp

          Filesize

          136KB

        • memory/1128-58-0x0000000005C90000-0x0000000005CAE000-memory.dmp

          Filesize

          120KB

        • memory/1128-59-0x0000000005CD0000-0x0000000005D1C000-memory.dmp

          Filesize

          304KB

        • memory/1128-60-0x0000000004970000-0x0000000004980000-memory.dmp

          Filesize

          64KB

        • memory/1128-87-0x0000000006C70000-0x0000000006D13000-memory.dmp

          Filesize

          652KB

        • memory/1128-63-0x0000000073A00000-0x0000000073A4C000-memory.dmp

          Filesize

          304KB

        • memory/1128-76-0x000000007F8E0000-0x000000007F8F0000-memory.dmp

          Filesize

          64KB

        • memory/2652-0-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/2652-11-0x0000000008C80000-0x0000000008D1C000-memory.dmp

          Filesize

          624KB

        • memory/2652-1-0x0000000000140000-0x0000000000224000-memory.dmp

          Filesize

          912KB

        • memory/2652-2-0x0000000005200000-0x00000000057A4000-memory.dmp

          Filesize

          5.6MB

        • memory/2652-3-0x0000000004C50000-0x0000000004CE2000-memory.dmp

          Filesize

          584KB

        • memory/2652-4-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

          Filesize

          64KB

        • memory/2652-5-0x0000000004C10000-0x0000000004C1A000-memory.dmp

          Filesize

          40KB

        • memory/2652-6-0x0000000004D80000-0x0000000004D90000-memory.dmp

          Filesize

          64KB

        • memory/2652-7-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/2652-8-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

          Filesize

          64KB

        • memory/2652-9-0x0000000004D90000-0x0000000004D9E000-memory.dmp

          Filesize

          56KB

        • memory/2652-10-0x00000000065D0000-0x0000000006688000-memory.dmp

          Filesize

          736KB

        • memory/2652-35-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/3100-18-0x0000000000BB0000-0x0000000000BC0000-memory.dmp

          Filesize

          64KB

        • memory/3100-92-0x00000000072A0000-0x00000000072B1000-memory.dmp

          Filesize

          68KB

        • memory/3100-31-0x0000000005720000-0x0000000005786000-memory.dmp

          Filesize

          408KB

        • memory/3100-102-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/3100-29-0x00000000056B0000-0x0000000005716000-memory.dmp

          Filesize

          408KB

        • memory/3100-94-0x00000000072E0000-0x00000000072F4000-memory.dmp

          Filesize

          80KB

        • memory/3100-20-0x0000000005080000-0x00000000056A8000-memory.dmp

          Filesize

          6.2MB

        • memory/3100-17-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/3100-19-0x0000000000BB0000-0x0000000000BC0000-memory.dmp

          Filesize

          64KB

        • memory/3100-66-0x0000000073A00000-0x0000000073A4C000-memory.dmp

          Filesize

          304KB

        • memory/3100-89-0x00000000070B0000-0x00000000070CA000-memory.dmp

          Filesize

          104KB

        • memory/3100-16-0x0000000002460000-0x0000000002496000-memory.dmp

          Filesize

          216KB

        • memory/3100-61-0x0000000000BB0000-0x0000000000BC0000-memory.dmp

          Filesize

          64KB

        • memory/3100-62-0x0000000006D30000-0x0000000006D62000-memory.dmp

          Filesize

          200KB

        • memory/3100-65-0x000000007F900000-0x000000007F910000-memory.dmp

          Filesize

          64KB