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Overview

overview

10

Static

static

5

1cb8654ce7...85.exe

windows7-x64

10

1cb8654ce7...85.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    112s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/01/2025, 09:05

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General

  • Target

    1cb8654ce731b738af7171cdc3cbdf12db8448848989c27f41e3d6169a761b85.exe

  • Size

    1.1MB

  • MD5

    a86b8ed4cb3e7fe4dd4432ae8c4665d1

  • SHA1

    57195b08dbe14417a41d0578ec606e9a18200a33

  • SHA256

    1cb8654ce731b738af7171cdc3cbdf12db8448848989c27f41e3d6169a761b85

  • SHA512

    eb5ce69b2d52fbb00071dce50b653428999da40f9a7c0747bfd26a87f995d9f3d1d89824c523dea723590c08140ad9e60500024492f879105d0380eca426f856

  • SSDEEP

    24576:1u6J33O0c+JY5UZ+XC0kGso6FakCsU4yYhK3x9uZ3WYq:Xu0c++OCvkGs9Fak4BYq

Score
10/10
remcosremotehostdiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Version

2.2.0 Pro

Botnet

RemoteHost

C2

185.217.1.142:3337

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    3

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    true

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-VBI2IL

  • 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

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
    persistence
  • Remcos

    Remcos is a closed-source remote control and surveillance software.

    ratremcos
  • Remcos family
    remcos
  • Checks computer location settings 2 TTPs 5 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Modifies WinLogon 2 TTPs 3 IoCs
    persistence
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • 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 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies registry class 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

    persistenceexecution
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1cb8654ce731b738af7171cdc3cbdf12db8448848989c27f41e3d6169a761b85.exe
    "C:\Users\Admin\AppData\Local\Temp\1cb8654ce731b738af7171cdc3cbdf12db8448848989c27f41e3d6169a761b85.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2428
    • C:\Users\Admin\AppData\Local\Temp\1cb8654ce731b738af7171cdc3cbdf12db8448848989c27f41e3d6169a761b85.exe
      "C:\Users\Admin\AppData\Local\Temp\1cb8654ce731b738af7171cdc3cbdf12db8448848989c27f41e3d6169a761b85.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1984
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:764
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn cttunesvr /tr "C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe" /sc minute /mo 1 /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4784
  • C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
    C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4460
    • C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
      "C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1600
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3516
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn cttunesvr /tr "C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe" /sc minute /mo 1 /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3140
  • C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
    C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
      "C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1928
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4504

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\install.vbs
    Filesize

    658B

    MD5

    460772bc1cab11e56cbe6e81deee2733

    SHA1

    09bcd7d39ad003baee074816547ee86950ef7375

    SHA256

    1365af65d621c2fb176e54378f5580eac070509d6f11dd282ae6fa2ed2dd7cc5

    SHA512

    afc7f367c51ad6267d1f35671985484502ffdd5121073444fac24fd536d4902a3b4c256fe0f6d0d3305a810d585f477fd627a9518e276e288fbe386e7707c926

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\install.vbs
    Filesize

    564B

    MD5

    e221e7bd7e33aef4a5264f798818142e

    SHA1

    3545dbcc35de80c8f15da0daceab80acd0f1ae22

    SHA256

    f37e43a3504c163fa4a82bacc92ceb8cccd37d1020fbba95cc954f316ce49516

    SHA512

    04775d0fa21526bbbaa2deea13af1d5fab6183ea3a2809073539293da78e20f1cf4b9a4afdeafb1b4e8ce17a5be40f44364808ab73c174c98bce53ad8a1807d8

    Download Submit

  • C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
    Filesize

    1.1MB

    MD5

    a7b724a2c0ddddcadb12bc4585f3233b

    SHA1

    36048ea12514282e25db3f46560e48425de79de2

    SHA256

    4891d9640c7cd80599e3408152a1afec93bd46c7a88c92cbd35c46fc0c604859

    SHA512

    af43d03b54ec28f07e46079f4d62c19274afb5c7f2b174c819069c871c22950fc2751f75f50ffeaea602da1649510bb6557e7c0fc2be5c9ffc9f575cda9f06c7

    Download Submit

  • memory/1600-17-0x0000000000600000-0x0000000000620000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1600-24-0x0000000000600000-0x0000000000620000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1928-32-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1928-39-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1984-1-0x0000000000130000-0x0000000000150000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1984-8-0x0000000000130000-0x0000000000150000-memory.dmp

    Filesize

    128KB

    Download

  • memory/2428-0-0x0000000003B50000-0x0000000003B51000-memory.dmp

    Filesize

    4KB

    Download