Analysis

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

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2024 03:10

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 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 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 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:3160
    • 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:1980
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mWrixkEbVc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1BB1.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3136
    • 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:948
      • 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:1300
        • 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:3216
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mWrixkEbVc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9006.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:3988
        • 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:4052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Remcos\logs.dat

    Filesize

    144B

    MD5

    43e16589f22102511382a406416a7765

    SHA1

    47389601fd53ab984a13c8d23534b8b47ec2f321

    SHA256

    aba8e3c22b2026c660ecb3b0c41cbc3a29f28549964f0ce3384c84c140f7b934

    SHA512

    0f0469dda2fff927437984bcc13b2be486b008c687d29ea3f7c9c8630ca93d18e030b611ee07ffb55410145978338641592863bdb56d292d00e88298fcf9c387

  • 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

    16dca86eaa0d384ef136e0715a5d8d35

    SHA1

    8a56d6bcd28f839ceab03f5381ea2728bafbdafc

    SHA256

    47168a45838286cf3c0048c098e094b16fbcf90a05ea340f771c6dcde7d2574d

    SHA512

    9a6137c40886a991ca70958a64dbb6c157ed0074baab3a4aba583dd0e7fa2ac670159cd74faf6c86b1e984cf3396115ceee44a970aeba15541bf048e0bdeb4e0

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vsebefst.wd5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp1BB1.tmp

    Filesize

    1KB

    MD5

    5e8c84d57d548e82593064edd01a6e71

    SHA1

    18c3169878cceece3feffe887cfeb613711f18cd

    SHA256

    f84136c725f4d82119870bb5a332da19f2b280c2c76c0b1b8354664add9e06ac

    SHA512

    7bd235e1d0de8890b3bebef32c06f038d05d1c20f0b20013f54436919343f03e5268837b2d45560bd679ebd9616429af947954482feb6ade086e46861e61eb33

  • memory/948-24-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/948-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/948-39-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/948-30-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/948-32-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-79-0x0000000004C10000-0x0000000004C22000-memory.dmp

    Filesize

    72KB

  • memory/1980-55-0x0000000071890000-0x00000000718DC000-memory.dmp

    Filesize

    304KB

  • memory/1980-69-0x00000000054D0000-0x00000000054DA000-memory.dmp

    Filesize

    40KB

  • memory/1980-21-0x0000000005760000-0x00000000057C6000-memory.dmp

    Filesize

    408KB

  • memory/1980-22-0x0000000005ED0000-0x0000000005F36000-memory.dmp

    Filesize

    408KB

  • memory/1980-31-0x0000000006180000-0x00000000064D4000-memory.dmp

    Filesize

    3.3MB

  • memory/1980-16-0x00000000750A0000-0x0000000075850000-memory.dmp

    Filesize

    7.7MB

  • memory/1980-17-0x0000000005830000-0x0000000005E58000-memory.dmp

    Filesize

    6.2MB

  • memory/1980-18-0x00000000750A0000-0x0000000075850000-memory.dmp

    Filesize

    7.7MB

  • memory/1980-20-0x00000000056C0000-0x00000000056E2000-memory.dmp

    Filesize

    136KB

  • memory/1980-78-0x00000000750A0000-0x0000000075850000-memory.dmp

    Filesize

    7.7MB

  • memory/1980-75-0x0000000007DF0000-0x0000000007DF8000-memory.dmp

    Filesize

    32KB

  • memory/1980-74-0x0000000007E10000-0x0000000007E2A000-memory.dmp

    Filesize

    104KB

  • memory/1980-73-0x0000000007D10000-0x0000000007D24000-memory.dmp

    Filesize

    80KB

  • memory/1980-23-0x00000000750A0000-0x0000000075850000-memory.dmp

    Filesize

    7.7MB

  • memory/1980-72-0x0000000007D00000-0x0000000007D0E000-memory.dmp

    Filesize

    56KB

  • memory/1980-71-0x0000000007CD0000-0x0000000007CE1000-memory.dmp

    Filesize

    68KB

  • memory/1980-52-0x0000000006790000-0x00000000067AE000-memory.dmp

    Filesize

    120KB

  • memory/1980-53-0x0000000006CC0000-0x0000000006D0C000-memory.dmp

    Filesize

    304KB

  • memory/1980-70-0x0000000007D50000-0x0000000007DE6000-memory.dmp

    Filesize

    600KB

  • memory/1980-65-0x0000000006D30000-0x0000000006D4E000-memory.dmp

    Filesize

    120KB

  • memory/1980-15-0x00000000051C0000-0x00000000051F6000-memory.dmp

    Filesize

    216KB

  • memory/1980-54-0x0000000006D50000-0x0000000006D82000-memory.dmp

    Filesize

    200KB

  • memory/1980-66-0x0000000007770000-0x0000000007813000-memory.dmp

    Filesize

    652KB

  • memory/1980-68-0x0000000007AB0000-0x0000000007ACA000-memory.dmp

    Filesize

    104KB

  • memory/1980-67-0x0000000008100000-0x000000000877A000-memory.dmp

    Filesize

    6.5MB

  • memory/3160-40-0x00000000750A0000-0x0000000075850000-memory.dmp

    Filesize

    7.7MB

  • memory/3160-4-0x0000000005870000-0x000000000587A000-memory.dmp

    Filesize

    40KB

  • memory/3160-1-0x0000000000C20000-0x0000000000D0A000-memory.dmp

    Filesize

    936KB

  • memory/3160-2-0x0000000005BF0000-0x0000000006194000-memory.dmp

    Filesize

    5.6MB

  • memory/3160-10-0x00000000081A0000-0x0000000008264000-memory.dmp

    Filesize

    784KB

  • memory/3160-9-0x00000000750A0000-0x0000000075850000-memory.dmp

    Filesize

    7.7MB

  • memory/3160-8-0x0000000005940000-0x0000000005952000-memory.dmp

    Filesize

    72KB

  • memory/3160-7-0x00000000750AE000-0x00000000750AF000-memory.dmp

    Filesize

    4KB

  • memory/3160-6-0x00000000750A0000-0x0000000075850000-memory.dmp

    Filesize

    7.7MB

  • memory/3160-3-0x00000000056E0000-0x0000000005772000-memory.dmp

    Filesize

    584KB

  • memory/3160-5-0x0000000005980000-0x0000000005A1C000-memory.dmp

    Filesize

    624KB

  • memory/3160-0-0x00000000750AE000-0x00000000750AF000-memory.dmp

    Filesize

    4KB

  • memory/3216-117-0x0000000007F20000-0x0000000007F31000-memory.dmp

    Filesize

    68KB

  • memory/3216-102-0x0000000006350000-0x00000000066A4000-memory.dmp

    Filesize

    3.3MB

  • memory/3216-118-0x0000000007F70000-0x0000000007F84000-memory.dmp

    Filesize

    80KB

  • memory/3216-116-0x0000000007C70000-0x0000000007D13000-memory.dmp

    Filesize

    652KB

  • memory/3216-105-0x0000000006A40000-0x0000000006A8C000-memory.dmp

    Filesize

    304KB

  • memory/3216-106-0x0000000075930000-0x000000007597C000-memory.dmp

    Filesize

    304KB

  • memory/4052-85-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4052-101-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4052-90-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4052-124-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4052-86-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4052-131-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4052-138-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4052-143-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4052-144-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB