Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    15-11-2024 02:48

General

  • Target

    972d31f6bff6eed33197d77be4cf2027535bd64d42965c207c6e541257a4e112.exe

  • Size

    920KB

  • MD5

    837245dd0067f14b51b01c3ec2abd1e2

  • SHA1

    050af9b128d86975c8afa6d62b1bedec0d6f20b0

  • SHA256

    972d31f6bff6eed33197d77be4cf2027535bd64d42965c207c6e541257a4e112

  • SHA512

    b0372c59246b7263fa213cf341af74aab174205d8ba6f06cfa18b92c16a8aed16b889fb2c37ffe27e1aa79f41c2a6be02e756dee6bad86d8ade27797d80a91c7

  • SSDEEP

    24576:jMyQZrc+IbxyYMv5KXgoNV8LCZacnu4Z1aNR3:PQ9c+IFrnemod46d

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

172.245.123.14:2404

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-3DXQCZ

  • 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 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 3 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\972d31f6bff6eed33197d77be4cf2027535bd64d42965c207c6e541257a4e112.exe
    "C:\Users\Admin\AppData\Local\Temp\972d31f6bff6eed33197d77be4cf2027535bd64d42965c207c6e541257a4e112.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:576
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ppcjCFk.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1796
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ppcjCFk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp119D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2160
    • C:\Users\Admin\AppData\Local\Temp\972d31f6bff6eed33197d77be4cf2027535bd64d42965c207c6e541257a4e112.exe
      "C:\Users\Admin\AppData\Local\Temp\972d31f6bff6eed33197d77be4cf2027535bd64d42965c207c6e541257a4e112.exe"
      2⤵
        PID:2864

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp119D.tmp

      Filesize

      1KB

      MD5

      8687b881ba42b7ec4224fbb7ddb04901

      SHA1

      1e8c50ca65cdde451791b80f9d9bb71828b1fedb

      SHA256

      477fdc8d376a94f6b60e7a3c2f0dccbce9445cea008621de971fe39166504a01

      SHA512

      eac46320d3bf17c33f3d8d2c13894244fed8e1744e7d6705308971eb9b96fc9e30ef1c90ca4177ef6b7f3b292bd97091cafe30dce1f1b9c666a7cef82efce126

    • memory/576-0-0x00000000748FE000-0x00000000748FF000-memory.dmp

      Filesize

      4KB

    • memory/576-1-0x00000000009D0000-0x0000000000ABC000-memory.dmp

      Filesize

      944KB

    • memory/576-2-0x00000000748F0000-0x0000000074FDE000-memory.dmp

      Filesize

      6.9MB

    • memory/576-3-0x0000000000870000-0x0000000000882000-memory.dmp

      Filesize

      72KB

    • memory/576-4-0x00000000748FE000-0x00000000748FF000-memory.dmp

      Filesize

      4KB

    • memory/576-5-0x00000000748F0000-0x0000000074FDE000-memory.dmp

      Filesize

      6.9MB

    • memory/576-6-0x0000000007B50000-0x0000000007C14000-memory.dmp

      Filesize

      784KB

    • memory/576-31-0x00000000748F0000-0x0000000074FDE000-memory.dmp

      Filesize

      6.9MB

    • memory/2864-22-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-32-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-27-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-25-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2864-26-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-18-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-12-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-16-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-14-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-20-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-28-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-33-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-34-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-35-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-36-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-37-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-38-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-39-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-40-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2864-41-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB