Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-07-2024 05:00

General

  • Target

    MalwareBazaar.exe

  • Size

    1.0MB

  • MD5

    7f409fdbf293c9c3ce17a1e540739e24

  • SHA1

    ae25b94e4e8c95a5439947b195b1bd2d2f07fa7a

  • SHA256

    52183f225975e6fa1a0c7f7917d43911deccf1375e4defa83852d06cb39c5d61

  • SHA512

    1ff2d45f978b3d5b67e7dfdb717abcb6a2fc745feeade7308a6798baf8e0f9509078f9b4ff4ea7431184fa31b01fc26a8c0af6981d098849cc9c4743d4b17b58

  • SSDEEP

    12288:WurSY+aZrwrmN+wYku7+yY++DSYOfGrT2LcdgrVrvFuVCJVuH71vilSeM93g:p/4rmNNtmY8YORwiPuVCnuH7hwm93

Malware Config

Extracted

Family

remcos

Botnet

BAREATA

C2

94.156.69.174:7459

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-7AD3IP

  • 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 2 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 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4836
    • 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\MalwareBazaar.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4616
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AEDsxJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2608
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AEDsxJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCBAC.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2444
    • C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
      "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
      2⤵
        PID:656
      • C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
        "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:864

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      00ce446c8553c5512537f8d2d1fe542f

      SHA1

      a7f831bde8351b68479360f0cb49c7bcad4ff563

      SHA256

      50c83d71327e9bb58ef40fdb38c99a97a3c9c1c4485201703a8a2b1606079ce0

      SHA512

      6a4c2dc393953ad4c9dd17e774f30d07e525bd33d23579b6017ba2280ec8bfb4431397b5561ff598c6c2c581f109b2b51a8c90474cb20d591701269bd68d0578

    • 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

      67947301ee2d9ebc6f51ab96b5748a67

      SHA1

      c6c9f9c69f817e6dce55391b9b4b1c6f3206e175

      SHA256

      c7acc3f2b88dd358e3226c1abd3ef75ee0ae980abf63520504bd8f031e70dd6a

      SHA512

      9b43527ac35a0ebecf024b140a378064639dce7daf9076200d2ab8561fe1af1fcc019dc210949a418b7b6e9ed25be39a6c865f97e6de7900680c293a05a636ed

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t2aemfr1.v5f.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      Filesize

      1KB

      MD5

      456b73800f83c0f23893fb6e1262fe4f

      SHA1

      2f226bcce74116ca5226abe1ec88e107cc99e2b8

      SHA256

      5b1f9e279e290f1f451eb16399c570b142a74579436a512881f2cc89fce84903

      SHA512

      e0ea35255bd284474d22586f23b73e9306ebcdfa381bc0e2de72d4b3827ffba5d2de8be4a62527b6bc93f0493182ca5eaefeefe143d5ca6c313f67e32d734a1d

    • memory/864-119-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-61-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-112-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-111-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-120-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-104-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-103-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-127-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-128-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-43-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-59-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-135-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-56-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-58-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-44-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-37-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-40-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-136-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/864-36-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2608-57-0x00000000069B0000-0x00000000069FC000-memory.dmp

      Filesize

      304KB

    • memory/2608-88-0x0000000007E70000-0x0000000007F06000-memory.dmp

      Filesize

      600KB

    • memory/2608-96-0x0000000074E10000-0x00000000755C0000-memory.dmp

      Filesize

      7.7MB

    • memory/2608-92-0x0000000007F30000-0x0000000007F4A000-memory.dmp

      Filesize

      104KB

    • memory/2608-21-0x0000000005910000-0x0000000005932000-memory.dmp

      Filesize

      136KB

    • memory/2608-22-0x00000000059B0000-0x0000000005A16000-memory.dmp

      Filesize

      408KB

    • memory/2608-55-0x00000000068D0000-0x00000000068EE000-memory.dmp

      Filesize

      120KB

    • memory/2608-91-0x0000000007E30000-0x0000000007E44000-memory.dmp

      Filesize

      80KB

    • memory/2608-89-0x0000000007DF0000-0x0000000007E01000-memory.dmp

      Filesize

      68KB

    • memory/2608-24-0x0000000074E10000-0x00000000755C0000-memory.dmp

      Filesize

      7.7MB

    • memory/2608-23-0x0000000005A20000-0x0000000005A86000-memory.dmp

      Filesize

      408KB

    • memory/2608-19-0x0000000074E10000-0x00000000755C0000-memory.dmp

      Filesize

      7.7MB

    • memory/2608-18-0x0000000074E10000-0x00000000755C0000-memory.dmp

      Filesize

      7.7MB

    • memory/2608-63-0x00000000756A0000-0x00000000756EC000-memory.dmp

      Filesize

      304KB

    • memory/2608-73-0x0000000006E80000-0x0000000006E9E000-memory.dmp

      Filesize

      120KB

    • memory/2608-74-0x0000000007AC0000-0x0000000007B63000-memory.dmp

      Filesize

      652KB

    • memory/2608-62-0x0000000006EA0000-0x0000000006ED2000-memory.dmp

      Filesize

      200KB

    • memory/2608-76-0x0000000007BF0000-0x0000000007C0A000-memory.dmp

      Filesize

      104KB

    • memory/2608-75-0x0000000008240000-0x00000000088BA000-memory.dmp

      Filesize

      6.5MB

    • memory/2608-77-0x0000000007C70000-0x0000000007C7A000-memory.dmp

      Filesize

      40KB

    • memory/4616-100-0x0000000074E10000-0x00000000755C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4616-38-0x0000000074E10000-0x00000000755C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4616-15-0x0000000002CD0000-0x0000000002D06000-memory.dmp

      Filesize

      216KB

    • memory/4616-90-0x0000000007B10000-0x0000000007B1E000-memory.dmp

      Filesize

      56KB

    • memory/4616-25-0x0000000005FA0000-0x00000000062F4000-memory.dmp

      Filesize

      3.3MB

    • memory/4616-26-0x0000000074E10000-0x00000000755C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4616-93-0x0000000007C00000-0x0000000007C08000-memory.dmp

      Filesize

      32KB

    • memory/4616-78-0x00000000756A0000-0x00000000756EC000-memory.dmp

      Filesize

      304KB

    • memory/4616-16-0x0000000005700000-0x0000000005D28000-memory.dmp

      Filesize

      6.2MB

    • memory/4616-17-0x0000000074E10000-0x00000000755C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4836-0-0x0000000074E1E000-0x0000000074E1F000-memory.dmp

      Filesize

      4KB

    • memory/4836-1-0x00000000002A0000-0x00000000003A8000-memory.dmp

      Filesize

      1.0MB

    • memory/4836-10-0x0000000007EA0000-0x0000000007F3C000-memory.dmp

      Filesize

      624KB

    • memory/4836-9-0x0000000005220000-0x00000000052E0000-memory.dmp

      Filesize

      768KB

    • memory/4836-8-0x0000000005030000-0x000000000503E000-memory.dmp

      Filesize

      56KB

    • memory/4836-7-0x0000000005010000-0x000000000501A000-memory.dmp

      Filesize

      40KB

    • memory/4836-6-0x0000000004E70000-0x0000000004E82000-memory.dmp

      Filesize

      72KB

    • memory/4836-5-0x0000000074E10000-0x00000000755C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4836-4-0x0000000004E30000-0x0000000004E3A000-memory.dmp

      Filesize

      40KB

    • memory/4836-3-0x0000000004D70000-0x0000000004E02000-memory.dmp

      Filesize

      584KB

    • memory/4836-2-0x0000000005460000-0x0000000005A04000-memory.dmp

      Filesize

      5.6MB

    • memory/4836-54-0x0000000074E10000-0x00000000755C0000-memory.dmp

      Filesize

      7.7MB