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Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2024, 11:45

General

  • Target

    NEW ORDER- 4788467.exe

  • Size

    908KB

  • MD5

    1cb86400147c835af58017f0474c5bcc

  • SHA1

    ac285cb623bf292341068dead954cfed9a1f8c81

  • SHA256

    c35b10fc350209ec356b48282d85b18d9b9ab5c0167dc88461297906602e3d61

  • SHA512

    ce74f39d092b13570f9387e5d43ced748dea9557e8887fc072694a2cf448b2c4cf741db3e76d551ebef3511b906ae1cbe0fe670f8968e51d1441982ec73b9b0c

  • SSDEEP

    24576:Nqho7Y33wd4D5N4UmVFruPkMKXbY31qKblvh:y1Hwd4FN4UoFqjKXboTp5

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

206.189.218.238:4782

206.189.218.238:2286

206.189.218.238:3363

206.189.218.238:3386

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-NJK093

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • 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 2 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 3 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 8 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEW ORDER- 4788467.exe
    "C:\Users\Admin\AppData\Local\Temp\NEW ORDER- 4788467.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:5016
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mWrixkEbVc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4388
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mWrixkEbVc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF3C6.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2436
    • C:\Users\Admin\AppData\Local\Temp\NEW ORDER- 4788467.exe
      "C:\Users\Admin\AppData\Local\Temp\NEW ORDER- 4788467.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4740
      • 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:4476
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mWrixkEbVc.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4720
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mWrixkEbVc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6387.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1988
        • C:\ProgramData\Remcos\remcos.exe
          "C:\ProgramData\Remcos\remcos.exe"
          4⤵
          • Executes dropped EXE
          PID:2200
        • 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
          • Suspicious use of SetWindowsHookEx
          PID:2896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Remcos\logs.dat

    Filesize

    144B

    MD5

    96a3d057fff003be449a5881826e9a90

    SHA1

    ebe5b4bac870131a08eb071cacb9091349412469

    SHA256

    d3f66110dd16bb8b125b05d6f4078c578601f4b0c14f02c31ac7a16ee0cacb0b

    SHA512

    55fd31002dcbc05682336ce02e909629139b2d4bec4491567876c04313aa548482b1a0b4c1ae81cf04c489dcb792af34ce21ef9c3dfccdade54a12736a9007cb

  • C:\ProgramData\Remcos\remcos.exe

    Filesize

    908KB

    MD5

    1cb86400147c835af58017f0474c5bcc

    SHA1

    ac285cb623bf292341068dead954cfed9a1f8c81

    SHA256

    c35b10fc350209ec356b48282d85b18d9b9ab5c0167dc88461297906602e3d61

    SHA512

    ce74f39d092b13570f9387e5d43ced748dea9557e8887fc072694a2cf448b2c4cf741db3e76d551ebef3511b906ae1cbe0fe670f8968e51d1441982ec73b9b0c

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

    Filesize

    2KB

    MD5

    3d086a433708053f9bf9523e1d87a4e8

    SHA1

    b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

    SHA256

    6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

    SHA512

    931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

    Filesize

    18KB

    MD5

    2d4158ad7012403fb412f6a09bb9ff86

    SHA1

    09203c6bf435eeebb129fdac937568b16e97d330

    SHA256

    3ecb4eeb6da1ad60799c29b3cf8420d02c712e0f95af20e7cdd553603bbd8ab0

    SHA512

    59ed22cc0bf2a54e6f5dd15768b47cff5677051b974a5d50161a4d2bb0d7cbc9e44bc38c717febc59f40a8ead5bb764673eb0238493aac35e21889b1556b23ec

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r422xw3u.c4j.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpF3C6.tmp

    Filesize

    1KB

    MD5

    fe92aeb8e4ae345b48ea935a7e84cfa6

    SHA1

    2c8dfcdb21897688a25343c0b45d3b28d886ed55

    SHA256

    ed26f555f389f0279e13dddd7bf693be6930bbb1de0358c0f26096c6d2ac1b94

    SHA512

    544b613dacdda2658714ec520c62c37bb73d16c2846448ced0374ff9d89c08df6fd33e602091ae4d4c6dd8296d2afe3dca0dd2f1a8875da1d5058a6aa231dac0

  • memory/2896-125-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2896-130-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2896-84-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2896-86-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2896-91-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2896-90-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2896-137-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2896-143-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2896-144-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4388-20-0x0000000005460000-0x00000000054C6000-memory.dmp

    Filesize

    408KB

  • memory/4388-70-0x0000000007670000-0x0000000007681000-memory.dmp

    Filesize

    68KB

  • memory/4388-15-0x0000000002820000-0x0000000002856000-memory.dmp

    Filesize

    216KB

  • memory/4388-28-0x0000000005CA0000-0x0000000005FF4000-memory.dmp

    Filesize

    3.3MB

  • memory/4388-16-0x0000000074780000-0x0000000074F30000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-77-0x0000000074780000-0x0000000074F30000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-74-0x0000000007790000-0x0000000007798000-memory.dmp

    Filesize

    32KB

  • memory/4388-73-0x00000000077B0000-0x00000000077CA000-memory.dmp

    Filesize

    104KB

  • memory/4388-22-0x0000000074780000-0x0000000074F30000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-21-0x00000000054D0000-0x0000000005536000-memory.dmp

    Filesize

    408KB

  • memory/4388-19-0x0000000005380000-0x00000000053A2000-memory.dmp

    Filesize

    136KB

  • memory/4388-17-0x0000000005670000-0x0000000005C98000-memory.dmp

    Filesize

    6.2MB

  • memory/4388-47-0x0000000006150000-0x000000000616E000-memory.dmp

    Filesize

    120KB

  • memory/4388-72-0x00000000076B0000-0x00000000076C4000-memory.dmp

    Filesize

    80KB

  • memory/4388-48-0x0000000006180000-0x00000000061CC000-memory.dmp

    Filesize

    304KB

  • memory/4388-53-0x00000000072F0000-0x0000000007322000-memory.dmp

    Filesize

    200KB

  • memory/4388-54-0x0000000070B60000-0x0000000070BAC000-memory.dmp

    Filesize

    304KB

  • memory/4388-64-0x00000000072D0000-0x00000000072EE000-memory.dmp

    Filesize

    120KB

  • memory/4388-65-0x0000000007330000-0x00000000073D3000-memory.dmp

    Filesize

    652KB

  • memory/4388-66-0x0000000007AC0000-0x000000000813A000-memory.dmp

    Filesize

    6.5MB

  • memory/4388-67-0x0000000007470000-0x000000000748A000-memory.dmp

    Filesize

    104KB

  • memory/4388-68-0x00000000074E0000-0x00000000074EA000-memory.dmp

    Filesize

    40KB

  • memory/4388-69-0x00000000076F0000-0x0000000007786000-memory.dmp

    Filesize

    600KB

  • memory/4388-71-0x00000000076A0000-0x00000000076AE000-memory.dmp

    Filesize

    56KB

  • memory/4476-78-0x0000000005550000-0x0000000005562000-memory.dmp

    Filesize

    72KB

  • memory/4720-118-0x0000000007260000-0x0000000007274000-memory.dmp

    Filesize

    80KB

  • memory/4720-117-0x0000000007220000-0x0000000007231000-memory.dmp

    Filesize

    68KB

  • memory/4720-116-0x00000000070A0000-0x0000000007143000-memory.dmp

    Filesize

    652KB

  • memory/4720-106-0x0000000075010000-0x000000007505C000-memory.dmp

    Filesize

    304KB

  • memory/4720-103-0x00000000058B0000-0x0000000005C04000-memory.dmp

    Filesize

    3.3MB

  • memory/4720-105-0x0000000005F80000-0x0000000005FCC000-memory.dmp

    Filesize

    304KB

  • memory/4740-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4740-52-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4740-24-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4740-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4740-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/5016-7-0x000000007478E000-0x000000007478F000-memory.dmp

    Filesize

    4KB

  • memory/5016-8-0x0000000005D40000-0x0000000005D52000-memory.dmp

    Filesize

    72KB

  • memory/5016-9-0x0000000074780000-0x0000000074F30000-memory.dmp

    Filesize

    7.7MB

  • memory/5016-10-0x0000000008540000-0x0000000008604000-memory.dmp

    Filesize

    784KB

  • memory/5016-35-0x0000000074780000-0x0000000074F30000-memory.dmp

    Filesize

    7.7MB

  • memory/5016-0-0x000000007478E000-0x000000007478F000-memory.dmp

    Filesize

    4KB

  • memory/5016-6-0x0000000005D60000-0x0000000005DFC000-memory.dmp

    Filesize

    624KB

  • memory/5016-5-0x0000000005A80000-0x0000000005A8A000-memory.dmp

    Filesize

    40KB

  • memory/5016-4-0x0000000074780000-0x0000000074F30000-memory.dmp

    Filesize

    7.7MB

  • memory/5016-3-0x0000000005B10000-0x0000000005BA2000-memory.dmp

    Filesize

    584KB

  • memory/5016-2-0x0000000006020000-0x00000000065C4000-memory.dmp

    Filesize

    5.6MB

  • memory/5016-1-0x0000000000FD0000-0x00000000010BA000-memory.dmp

    Filesize

    936KB