Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2024 05:09

General

  • Target

    c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe

  • Size

    1.1MB

  • MD5

    d961a05e5efceee1b56c46d392c7407f

  • SHA1

    7d179a2e17b72f02e8480d68a750c7b9c83e3cd1

  • SHA256

    c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18

  • SHA512

    15110ae42fe92ba8cb4438c9aea1d20952a78856e8f2c0da7da5913f41b083238674219903589dcecce2c2b65bdd9940e823d291ff840a93429457f80962fdd1

  • SSDEEP

    24576:r30Vvkk49eS8w0K1CrZOecyCvRChKUmLG2:r344ww0K1CrQecyzRmLG

Malware Config

Extracted

Family

remcos

Botnet

noon

C2

79.134.225.121:1200

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-6F12P7

  • 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

  • take_screenshot_title

    notepad;solitaire;

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.

  • Uses the VBS compiler for execution 1 TTPs
  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe
    "C:\Users\Admin\AppData\Local\Temp\c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2888
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FWBWoxNaDhm.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2788
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FWBWoxNaDhm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4F0.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2532
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4F0.tmp

    Filesize

    1KB

    MD5

    2edc78944968948f4f808d224ab12cfc

    SHA1

    c2b6949f32ea43c4288734a9f8a83ea186a25cf1

    SHA256

    ae70babc64baf0ad84df51ba16d736bddea6320fae00fb6ffbbc56344567f9b1

    SHA512

    3aff37a0dee953c0c62deebbf7775eb2f2c46158784a4a57c93e13212df12675e829a990cee719661da932829686efcfe5e49ee2f07baf62efcc1cd43d413109

  • C:\Users\Admin\AppData\Roaming\remcos\logs.dat

    Filesize

    144B

    MD5

    6e573317119bc3d64a15e2872610b0dd

    SHA1

    b84073ccde1e1ff2b8c594014960f5c6c7f964ec

    SHA256

    267f5cd05670fc14e2f0879dbceab85b7adf5e4173dd3f8dd7428100068da405

    SHA512

    73e1f368a5dda842c125ba04329f022b326554164caee99766f336abec45d2fa8d7905ab7a4a02abb1e9739417b122f4428ce67ee1c31e94720e28b99aaf3c80

  • memory/2000-50-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-88-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-38-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-90-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-89-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-51-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-87-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-37-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-33-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-29-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-27-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-25-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-23-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-54-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-17-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-32-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-21-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-85-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-84-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-83-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-82-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-80-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-40-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-41-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-42-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-43-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-45-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-46-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-47-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-48-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-31-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2000-34-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-19-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-55-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-15-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-57-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-58-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-60-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-61-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-62-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-63-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-64-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-66-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-67-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-68-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-69-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-71-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-72-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-73-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-74-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-75-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-77-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-78-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2000-79-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2888-39-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2888-14-0x00000000081A0000-0x000000000821A000-memory.dmp

    Filesize

    488KB

  • memory/2888-6-0x0000000007F40000-0x000000000803A000-memory.dmp

    Filesize

    1000KB

  • memory/2888-5-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2888-4-0x0000000073DCE000-0x0000000073DCF000-memory.dmp

    Filesize

    4KB

  • memory/2888-3-0x00000000004C0000-0x00000000004CE000-memory.dmp

    Filesize

    56KB

  • memory/2888-2-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2888-1-0x0000000000390000-0x00000000004A8000-memory.dmp

    Filesize

    1.1MB

  • memory/2888-0-0x0000000073DCE000-0x0000000073DCF000-memory.dmp

    Filesize

    4KB