Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2024 14:02

General

  • Target

    cbcd738e4acad1d80148a67af4dca082e19f2d411f14fd0aa41d1c9c98fe5048.exe

  • Size

    896KB

  • MD5

    b464444a180c10a26843bc549cd87601

  • SHA1

    545b633847b6148c0016f58fc2d9a949778b0433

  • SHA256

    cbcd738e4acad1d80148a67af4dca082e19f2d411f14fd0aa41d1c9c98fe5048

  • SHA512

    b2f849290ce0948f3f43336818c9448b6538ef14dbeae122943d91a159acb8cf81976bb84f9c7f313c64943cdc7b02f9d3b804866c5befdc0cf260e01595a1f0

  • SSDEEP

    24576:mn9Cgx+s7vOBnRtyy3/DaIiZD7kFOoLGV0EFemOoZ0IZ:UwgvezycbtI4OH0EFePo2IZ

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

eadzagba1.duckdns.org:4877

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-8XMYGH

  • 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.

  • Remcos family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cbcd738e4acad1d80148a67af4dca082e19f2d411f14fd0aa41d1c9c98fe5048.exe
    "C:\Users\Admin\AppData\Local\Temp\cbcd738e4acad1d80148a67af4dca082e19f2d411f14fd0aa41d1c9c98fe5048.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:3788
    • 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\cbcd738e4acad1d80148a67af4dca082e19f2d411f14fd0aa41d1c9c98fe5048.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4816
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rJxVpYQDxuAdz.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3980
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rJxVpYQDxuAdz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA0FE.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1832
    • C:\Users\Admin\AppData\Local\Temp\cbcd738e4acad1d80148a67af4dca082e19f2d411f14fd0aa41d1c9c98fe5048.exe
      "C:\Users\Admin\AppData\Local\Temp\cbcd738e4acad1d80148a67af4dca082e19f2d411f14fd0aa41d1c9c98fe5048.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4912
      • C:\ProgramData\Remcos\remcos.exe
        "C:\ProgramData\Remcos\remcos.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1852
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\ProgramData\Remcos\remcos.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3644
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rJxVpYQDxuAdz.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4484
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rJxVpYQDxuAdz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp521E.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:3016
        • C:\ProgramData\Remcos\remcos.exe
          "C:\ProgramData\Remcos\remcos.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:2552

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Remcos\remcos.exe

    Filesize

    896KB

    MD5

    b464444a180c10a26843bc549cd87601

    SHA1

    545b633847b6148c0016f58fc2d9a949778b0433

    SHA256

    cbcd738e4acad1d80148a67af4dca082e19f2d411f14fd0aa41d1c9c98fe5048

    SHA512

    b2f849290ce0948f3f43336818c9448b6538ef14dbeae122943d91a159acb8cf81976bb84f9c7f313c64943cdc7b02f9d3b804866c5befdc0cf260e01595a1f0

  • 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

    a1ff8abe587335f6fa6d6e5eaaa3b7f6

    SHA1

    78505945faafc358261bbf235faea3c3e4d184ad

    SHA256

    41282a9b459b063b06961db88b3919dd71821bf97755d73443cba7ff214b23ca

    SHA512

    2492f378763389c17912618ab827367acbe546303f4ec3db33141858beb0dc71b602fda1e3dcc5aefb5105530e5103b46558845344d8cbd3946e6fcca51aabdb

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

    Filesize

    18KB

    MD5

    c54b8a9e1d8659152dd1c2ae2b497747

    SHA1

    635fe3da99671b7c7228ff4013be7869955b0b4a

    SHA256

    512a96774bdc3379d043d68b0da468e9d9a919dd447931f443b7819a6053ab80

    SHA512

    0a088b2777321dbf277853004fbaa3562f0c7055b47a4e1a45550c463d3ed9351183fcd347b31ba524041d08f5a62eccc589149afb2d10b0030de0d66fa2ff67

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yi5pnul5.1h3.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpA0FE.tmp

    Filesize

    1KB

    MD5

    282c1ce799b373658a75d7c65813404e

    SHA1

    835684af2f93b1fb2f3ea940592dc850ecb25911

    SHA256

    f3bf86adf31563168ac04414ac024fad190e2d8b2d6ffa979c97545258f8b204

    SHA512

    fd41bbed1e94467e1d5f6c24bc2b962ef47451766764586688976dd90cc000390cdd87bc8a0c7ef8ea9d7f500ad959b8db61f42e5794997b22fb3968bfc23014

  • memory/2552-182-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-200-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-176-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-175-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-174-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-210-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-209-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-196-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-195-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-208-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-173-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-194-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-155-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-172-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-157-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-207-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-206-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-156-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-193-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-171-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-192-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-191-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-170-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-190-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-197-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-189-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-188-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-169-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-204-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-187-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-186-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-185-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-203-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-184-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-183-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-202-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-201-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-177-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-168-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-167-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-166-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-122-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-121-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-165-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-125-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-164-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-127-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-181-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-180-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-163-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-179-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-178-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-151-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-162-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-199-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-205-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-198-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-158-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-159-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-160-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2552-161-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3644-100-0x0000000005BB0000-0x0000000005F04000-memory.dmp

    Filesize

    3.3MB

  • memory/3644-139-0x0000000073D10000-0x0000000073D5C000-memory.dmp

    Filesize

    304KB

  • memory/3644-126-0x00000000062A0000-0x00000000062EC000-memory.dmp

    Filesize

    304KB

  • memory/3788-0-0x000000007524E000-0x000000007524F000-memory.dmp

    Filesize

    4KB

  • memory/3788-2-0x00000000059A0000-0x0000000005F44000-memory.dmp

    Filesize

    5.6MB

  • memory/3788-3-0x00000000054B0000-0x0000000005542000-memory.dmp

    Filesize

    584KB

  • memory/3788-1-0x00000000009F0000-0x0000000000AD6000-memory.dmp

    Filesize

    920KB

  • memory/3788-7-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3788-60-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3788-4-0x0000000005570000-0x000000000557A000-memory.dmp

    Filesize

    40KB

  • memory/3788-5-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3788-6-0x000000007524E000-0x000000007524F000-memory.dmp

    Filesize

    4KB

  • memory/3788-10-0x000000000A960000-0x000000000A9FC000-memory.dmp

    Filesize

    624KB

  • memory/3788-9-0x0000000007E30000-0x0000000007EF0000-memory.dmp

    Filesize

    768KB

  • memory/3788-8-0x0000000005950000-0x0000000005962000-memory.dmp

    Filesize

    72KB

  • memory/3980-61-0x00000000073F0000-0x0000000007422000-memory.dmp

    Filesize

    200KB

  • memory/3980-86-0x00000000077E0000-0x00000000077EA000-memory.dmp

    Filesize

    40KB

  • memory/3980-17-0x00000000056E0000-0x0000000005D08000-memory.dmp

    Filesize

    6.2MB

  • memory/3980-18-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3980-22-0x0000000005690000-0x00000000056B2000-memory.dmp

    Filesize

    136KB

  • memory/3980-96-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3980-90-0x00000000079B0000-0x00000000079C4000-memory.dmp

    Filesize

    80KB

  • memory/3980-89-0x00000000079A0000-0x00000000079AE000-memory.dmp

    Filesize

    56KB

  • memory/3980-87-0x00000000079F0000-0x0000000007A86000-memory.dmp

    Filesize

    600KB

  • memory/3980-21-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3980-85-0x0000000007770000-0x000000000778A000-memory.dmp

    Filesize

    104KB

  • memory/3980-73-0x0000000007430000-0x00000000074D3000-memory.dmp

    Filesize

    652KB

  • memory/3980-72-0x0000000006A20000-0x0000000006A3E000-memory.dmp

    Filesize

    120KB

  • memory/3980-62-0x000000006FC30000-0x000000006FC7C000-memory.dmp

    Filesize

    304KB

  • memory/3980-59-0x0000000006990000-0x00000000069DC000-memory.dmp

    Filesize

    304KB

  • memory/3980-58-0x0000000006440000-0x000000000645E000-memory.dmp

    Filesize

    120KB

  • memory/4484-150-0x00000000074F0000-0x0000000007504000-memory.dmp

    Filesize

    80KB

  • memory/4484-128-0x0000000073D10000-0x0000000073D5C000-memory.dmp

    Filesize

    304KB

  • memory/4484-138-0x0000000006F40000-0x0000000006FE3000-memory.dmp

    Filesize

    652KB

  • memory/4484-149-0x00000000074B0000-0x00000000074C1000-memory.dmp

    Filesize

    68KB

  • memory/4816-74-0x000000006FC30000-0x000000006FC7C000-memory.dmp

    Filesize

    304KB

  • memory/4816-84-0x00000000077D0000-0x0000000007E4A000-memory.dmp

    Filesize

    6.5MB

  • memory/4816-24-0x0000000005830000-0x0000000005896000-memory.dmp

    Filesize

    408KB

  • memory/4816-95-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4816-92-0x00000000074B0000-0x00000000074B8000-memory.dmp

    Filesize

    32KB

  • memory/4816-91-0x00000000074D0000-0x00000000074EA000-memory.dmp

    Filesize

    104KB

  • memory/4816-88-0x0000000007390000-0x00000000073A1000-memory.dmp

    Filesize

    68KB

  • memory/4816-23-0x00000000057C0000-0x0000000005826000-memory.dmp

    Filesize

    408KB

  • memory/4816-15-0x0000000002560000-0x0000000002596000-memory.dmp

    Filesize

    216KB

  • memory/4816-16-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4816-44-0x00000000059A0000-0x0000000005CF4000-memory.dmp

    Filesize

    3.3MB

  • memory/4816-19-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4912-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4912-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB