Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 11:26

General

  • Target

    6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973.exe

  • Size

    972KB

  • MD5

    a035a6cfbe07dadcd1a4f89cc77d99b0

  • SHA1

    ab53ba007f55daefb7dbf7d82fa135fe3046a208

  • SHA256

    6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973

  • SHA512

    d03baddf8283857fa4bd61cb3b279413761143605a9bc2a26e7303ac9cf125cff5d2c263ca97e30e79928c839d5ad617bb2328f615d445ad81d05771e49a010b

  • SSDEEP

    12288:5umVWXiUJmBCk1sV2tfIUFspQ2zgKZhKV9+xhJJPeWiHD7aqZMJkR:hifJmBPfepFgahKmJejcU

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

162.251.122.76:7119

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-P2SX34

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973.exe
    "C:\Users\Admin\AppData\Local\Temp\6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:840
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2824
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZxiJIiRCztV.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2768
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZxiJIiRCztV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFB11.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2832
    • C:\Users\Admin\AppData\Local\Temp\6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973.exe
      "C:\Users\Admin\AppData\Local\Temp\6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973.exe"
      2⤵
        PID:2808
      • C:\Users\Admin\AppData\Local\Temp\6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973.exe
        "C:\Users\Admin\AppData\Local\Temp\6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2068

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpFB11.tmp

      Filesize

      1KB

      MD5

      567bc892250b50c64971fcfc0e096196

      SHA1

      26e53b215782de4e14b3539f83b931b2ffc4505c

      SHA256

      666471ab5c10d9a4b72b067f1ed3825275ec367c146819a080a46e87c2981d3c

      SHA512

      9af568bc38dc39b343a671d5631e24aacdd7d7038385ad23e8d15242da416731e8835dc1fbd64306fe183bbfa204fe70ac765f1bb22c719ae4a5cdd2a408af8d

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

      Filesize

      7KB

      MD5

      7a748b2a85b625a2a64ec2035d139d82

      SHA1

      d46d95f2c45851b0f05a995e93c010e6ecc11907

      SHA256

      1c975f521fba09afda3f1b75e9c6b0a79bf70afecc5616e09958db927dc06816

      SHA512

      eaff49dd9dd73b968979afe1fde56b5c98528e6420fa55522fc35c752119554745035915b2b8ead5639892ea1bbc1e38e5a228854e4b2701496255a4f32dc557

    • memory/840-40-0x00000000744A0000-0x0000000074B8E000-memory.dmp

      Filesize

      6.9MB

    • memory/840-1-0x0000000000F00000-0x0000000000FF4000-memory.dmp

      Filesize

      976KB

    • memory/840-2-0x00000000744A0000-0x0000000074B8E000-memory.dmp

      Filesize

      6.9MB

    • memory/840-3-0x00000000744AE000-0x00000000744AF000-memory.dmp

      Filesize

      4KB

    • memory/840-4-0x00000000744A0000-0x0000000074B8E000-memory.dmp

      Filesize

      6.9MB

    • memory/840-5-0x0000000000950000-0x0000000000962000-memory.dmp

      Filesize

      72KB

    • memory/840-6-0x0000000005660000-0x0000000005720000-memory.dmp

      Filesize

      768KB

    • memory/840-0-0x00000000744AE000-0x00000000744AF000-memory.dmp

      Filesize

      4KB

    • memory/2068-36-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-23-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-39-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-38-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-19-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2068-33-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-31-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-29-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-27-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-26-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-37-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-21-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-41-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-42-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-43-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-44-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-45-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-46-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-47-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2068-48-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB