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Overview

overview

10

Static

static

5

38052ddd9c...53.exe

windows7-x64

10

38052ddd9c...53.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/01/2025, 22:38

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General

  • Target

    38052ddd9c64e44bd2631ae021c1e973bed0ddfc8be6c3b2714011647c551d53.exe

  • Size

    1.1MB

  • MD5

    dd09e8863ee6d30492d5cba898538f85

  • SHA1

    700f5ce79c5fd236ecb778ab0e14dbc7df22bc55

  • SHA256

    38052ddd9c64e44bd2631ae021c1e973bed0ddfc8be6c3b2714011647c551d53

  • SHA512

    beff97a572ee4576d3ae1eda5e7692b42a0d679abf8f375a19d0df356fcb6726ba9cdfdb1359dc9a8b67a39553cea279acb29fece86f49cf5f53a3f074e87b28

  • SSDEEP

    24576:1u6J33O0c+JY5UZ+XC0kGso6FakCsU4yYhK3x9uZ3WYX:Xu0c++OCvkGs9Fak4BYX

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 4 IoCs
    persistence
  • Remcos

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

    ratremcos
  • Remcos family
    remcos
  • Checks computer location settings 2 TTPs 7 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Modifies WinLogon 2 TTPs 4 IoCs
    persistence
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 15 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 4 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

    persistenceexecution
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38052ddd9c64e44bd2631ae021c1e973bed0ddfc8be6c3b2714011647c551d53.exe
    "C:\Users\Admin\AppData\Local\Temp\38052ddd9c64e44bd2631ae021c1e973bed0ddfc8be6c3b2714011647c551d53.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:536
    • C:\Users\Admin\AppData\Local\Temp\38052ddd9c64e44bd2631ae021c1e973bed0ddfc8be6c3b2714011647c551d53.exe
      "C:\Users\Admin\AppData\Local\Temp\38052ddd9c64e44bd2631ae021c1e973bed0ddfc8be6c3b2714011647c551d53.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:4916
      • 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:4960
    • 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:1080
  • 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:2332
    • 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:1124
      • 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:5084
    • 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:2464
  • 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:2492
    • 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:2232
      • 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:1108
    • 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:4960
  • 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:2156
    • 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:5100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    658B

    MD5

    6e5dc5303fa3191374430f5a32236fdb

    SHA1

    8fc15d0baf88a969c44543205208a2de14805104

    SHA256

    242e48c1ff0a20dfc8feec5bf685c31d6e6356cb931d9f51b3e8ff685c761998

    SHA512

    6beb5430acc8bacf92a6d6bbed03dc163536c7aea1499d36b2580da683f4353cd4ca34dceff8e870c622c9f49ada1b66eb44a605e40e7949f1ce76cc52dde353

    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

    1c9f20b6a7865d76806fa46774df672e

    SHA1

    c715b5871584197d8b460b8ac940562f188d71b9

    SHA256

    e9d79115b1c0e17d4712c6927d8a2894105030c350da8ffc07c6d572de840bf7

    SHA512

    1dc166f6ab6937c697cc679c4e0e299e073aa836a54ba7e5ce509b98b3e74fc51fb289ef9d90d0ffe593c3187422b102807fca4f6bd82b90eeb6326de88136b7

    Download Submit

  • memory/536-0-0x0000000003D70000-0x0000000003D71000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1124-24-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1928-47-0x00000000001A0000-0x00000000001C0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1928-54-0x00000000001A0000-0x00000000001C0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/2232-39-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

    Download

  • memory/4916-2-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

    Download

  • memory/4916-8-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

    Download