Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    23/10/2023, 11:11

General

  • Target

    Cheque copy.exe

  • Size

    1.0MB

  • MD5

    23a617011a3d71135f895ed5fd643c6e

  • SHA1

    15b7efb6dfa050ee1892a1112329ef360bc1317c

  • SHA256

    ce39a137b9ff86bf23d7c62480a804e8d25c8b9154e9792b669374ac7f92e192

  • SHA512

    0e7f3fe27c6ebd66a93291349f91db1e30dc88f0bc96064a935f6e5f42b93e6967e8a9101fae14a9e7d18224dcffb1e8402dab451f16e465550d960970e1fcad

  • SSDEEP

    24576:tDDxs6gnAsLzJ6Wy3V6yANOVofLAw8meQcOQezIcLUCs:tDNs6gnAsL9O+gCfLAwdcOQYI

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

fun

C2

194.147.140.194:1998

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-62Q8OD

  • 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.

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Cheque copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Cheque copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SzKneWgZlzw.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2864
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SzKneWgZlzw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp10E2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2872
    • C:\Users\Admin\AppData\Local\Temp\Cheque copy.exe
      "C:\Users\Admin\AppData\Local\Temp\Cheque copy.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2268

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    c05b4328707e5cd1bcc53759de66ba54

    SHA1

    aa18f1e194af65fc900ac38574fb462cb8702c9c

    SHA256

    3153e8a8df3385acc52c3b01d15fb5899d688bef500141266d7eeefcc2fb1b6a

    SHA512

    dc83f9d6358ead4284e1b814e34078266cb605717a02d749e070e8d5657104f4ac25ac1827eb86efd1726b0a82fd3ed79172ae166ee747dec40991195c21c095

  • C:\Users\Admin\AppData\Local\Temp\tmp10E2.tmp

    Filesize

    1KB

    MD5

    87ef0e44e18cd544eb4a625decfa4701

    SHA1

    51a2e859e2cb1b32db46f18682e9df1ac2f3b35c

    SHA256

    124ea08e5164a8fe4c3ca1ee265d1675e3a5038a6b1769f534ef2c10600e51b7

    SHA512

    3b979ddd4ee391b7889e639e3dabcdea9d8972f74ea0261accc5203e8bead99bd8c29165db1fc3e9e407452217814471bcf95697a3979f4668d0a9ab15a9f8e9

  • memory/2268-28-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-29-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-31-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-73-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-72-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-65-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-64-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-57-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-14-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-15-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-16-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-17-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-18-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-19-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-20-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-21-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2268-24-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-56-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-27-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-49-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-48-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-47-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-34-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-35-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-40-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2268-38-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/2864-37-0x0000000074540000-0x0000000074AEB000-memory.dmp

    Filesize

    5.7MB

  • memory/2864-39-0x00000000027D0000-0x0000000002810000-memory.dmp

    Filesize

    256KB

  • memory/2864-36-0x0000000074540000-0x0000000074AEB000-memory.dmp

    Filesize

    5.7MB

  • memory/2864-42-0x00000000027D0000-0x0000000002810000-memory.dmp

    Filesize

    256KB

  • memory/2864-45-0x0000000074540000-0x0000000074AEB000-memory.dmp

    Filesize

    5.7MB

  • memory/3052-1-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB

  • memory/3052-4-0x0000000000200000-0x000000000020C000-memory.dmp

    Filesize

    48KB

  • memory/3052-3-0x0000000000240000-0x000000000025C000-memory.dmp

    Filesize

    112KB

  • memory/3052-0-0x0000000000E60000-0x0000000000F66000-memory.dmp

    Filesize

    1.0MB

  • memory/3052-26-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB

  • memory/3052-2-0x0000000004EA0000-0x0000000004EE0000-memory.dmp

    Filesize

    256KB

  • memory/3052-8-0x000000000B040000-0x000000000B0F8000-memory.dmp

    Filesize

    736KB

  • memory/3052-7-0x0000000000220000-0x0000000000230000-memory.dmp

    Filesize

    64KB

  • memory/3052-6-0x0000000004EA0000-0x0000000004EE0000-memory.dmp

    Filesize

    256KB

  • memory/3052-5-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB