Analysis

  • max time kernel
    148s
  • max time network
    148s
  • 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 08:00

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:3424
    • 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:3680
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mWrixkEbVc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE6E5.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4160
    • 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:4268
      • 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:4760
        • 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:212
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mWrixkEbVc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp55BC.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1596
        • C:\ProgramData\Remcos\remcos.exe
          "C:\ProgramData\Remcos\remcos.exe"
          4⤵
          • Executes dropped EXE
          PID:3300
        • 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:512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Remcos\logs.dat

    Filesize

    144B

    MD5

    6bf7ab709bc2f4a9397e69a7274cc381

    SHA1

    465891783eb23059741189ea1d5f3f7a6460f6f8

    SHA256

    fec8825e4770dfefd7f0d141d5308841522a8c6be41ae12df9a73cf43d041d29

    SHA512

    f1beaaeb8a0f636e045acc982509f865084d97b73fa6ecf9a5e7a4f555df2a28139534ebd72d12ce2bf17570b65892550d874d8668844c488a63f25fd801cc85

  • 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

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

    Filesize

    18KB

    MD5

    779ee17e576e35228f1c4b267a82f1e4

    SHA1

    8b4e539104c351805d7510c6ad8ebddc13af926d

    SHA256

    e0ffd75ef27091ab40205af5526f1136a5805ad75fde8867195a5c23714dbf13

    SHA512

    458cd1992036b62f212c7747a03a9f4a7e2a3507198637bd6dbd71c874ac3fbfd84f19ce9a70bed159317833d4335b22555bf1b6436d5f262fc71e808d345123

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_x5jnbop1.b1a.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpE6E5.tmp

    Filesize

    1KB

    MD5

    0fbdf72711941bb705c89e08669a7f3d

    SHA1

    44cda8198a162bdd348a3bd047326454cb40fe09

    SHA256

    ec8d02344844947db5b5e4a336418a821ed880ee30bf85a476f040398c55fb51

    SHA512

    7e350ee233c55919c259c4321c17fc5f09538337ab47f26497ce869b4ef156b2d213c5fa9d88d221b262b9821c957849680b9350683f39517b39fa11ed19d940

  • memory/212-117-0x00000000071E0000-0x0000000007283000-memory.dmp

    Filesize

    652KB

  • memory/212-119-0x00000000074E0000-0x00000000074F4000-memory.dmp

    Filesize

    80KB

  • memory/212-104-0x0000000005A80000-0x0000000005DD4000-memory.dmp

    Filesize

    3.3MB

  • memory/212-106-0x00000000064C0000-0x000000000650C000-memory.dmp

    Filesize

    304KB

  • memory/212-107-0x00000000710E0000-0x000000007112C000-memory.dmp

    Filesize

    304KB

  • memory/212-118-0x0000000007490000-0x00000000074A1000-memory.dmp

    Filesize

    68KB

  • memory/512-87-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/512-145-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/512-138-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/512-131-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/512-91-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/512-126-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/512-86-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/512-92-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/512-144-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3424-10-0x0000000006980000-0x0000000006A44000-memory.dmp

    Filesize

    784KB

  • memory/3424-3-0x0000000005580000-0x0000000005612000-memory.dmp

    Filesize

    584KB

  • memory/3424-6-0x0000000005840000-0x00000000058DC000-memory.dmp

    Filesize

    624KB

  • memory/3424-5-0x0000000074A40000-0x00000000751F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3424-7-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

    Filesize

    4KB

  • memory/3424-2-0x0000000005C20000-0x00000000061C4000-memory.dmp

    Filesize

    5.6MB

  • memory/3424-28-0x0000000074A40000-0x00000000751F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3424-9-0x0000000074A40000-0x00000000751F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3424-4-0x0000000005620000-0x000000000562A000-memory.dmp

    Filesize

    40KB

  • memory/3424-8-0x0000000005A40000-0x0000000005A52000-memory.dmp

    Filesize

    72KB

  • memory/3424-1-0x0000000000C10000-0x0000000000CFA000-memory.dmp

    Filesize

    936KB

  • memory/3424-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

    Filesize

    4KB

  • memory/3680-55-0x0000000073510000-0x000000007355C000-memory.dmp

    Filesize

    304KB

  • memory/3680-53-0x0000000006260000-0x00000000062AC000-memory.dmp

    Filesize

    304KB

  • memory/3680-67-0x0000000007BA0000-0x000000000821A000-memory.dmp

    Filesize

    6.5MB

  • memory/3680-68-0x0000000007550000-0x000000000756A000-memory.dmp

    Filesize

    104KB

  • memory/3680-69-0x00000000075C0000-0x00000000075CA000-memory.dmp

    Filesize

    40KB

  • memory/3680-70-0x00000000077D0000-0x0000000007866000-memory.dmp

    Filesize

    600KB

  • memory/3680-71-0x0000000007750000-0x0000000007761000-memory.dmp

    Filesize

    68KB

  • memory/3680-73-0x0000000007790000-0x00000000077A4000-memory.dmp

    Filesize

    80KB

  • memory/3680-72-0x0000000007780000-0x000000000778E000-memory.dmp

    Filesize

    56KB

  • memory/3680-75-0x0000000007870000-0x0000000007878000-memory.dmp

    Filesize

    32KB

  • memory/3680-74-0x0000000007890000-0x00000000078AA000-memory.dmp

    Filesize

    104KB

  • memory/3680-78-0x0000000074A40000-0x00000000751F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3680-15-0x0000000004C90000-0x0000000004CC6000-memory.dmp

    Filesize

    216KB

  • memory/3680-65-0x0000000006840000-0x000000000685E000-memory.dmp

    Filesize

    120KB

  • memory/3680-66-0x0000000007430000-0x00000000074D3000-memory.dmp

    Filesize

    652KB

  • memory/3680-17-0x0000000074A40000-0x00000000751F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3680-25-0x0000000005350000-0x0000000005372000-memory.dmp

    Filesize

    136KB

  • memory/3680-26-0x0000000005A50000-0x0000000005AB6000-memory.dmp

    Filesize

    408KB

  • memory/3680-27-0x0000000005AC0000-0x0000000005B26000-memory.dmp

    Filesize

    408KB

  • memory/3680-45-0x0000000005C30000-0x0000000005F84000-memory.dmp

    Filesize

    3.3MB

  • memory/3680-46-0x0000000074A40000-0x00000000751F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3680-18-0x00000000053B0000-0x00000000059D8000-memory.dmp

    Filesize

    6.2MB

  • memory/3680-54-0x0000000006800000-0x0000000006832000-memory.dmp

    Filesize

    200KB

  • memory/3680-52-0x0000000006210000-0x000000000622E000-memory.dmp

    Filesize

    120KB

  • memory/3680-21-0x0000000074A40000-0x00000000751F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4268-22-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4268-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4268-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4268-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4268-20-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4760-79-0x0000000004D90000-0x0000000004DA2000-memory.dmp

    Filesize

    72KB