Analysis

  • max time kernel
    146s
  • max time network
    160s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    21-06-2021 01:06

General

  • Target

    W0rld cup_QATAR 2022 STADIUM PROJECT ONGOING PR0JECT.exe

  • Size

    35KB

  • MD5

    338ffcaf3397eb562228788f41c0268a

  • SHA1

    544a8b8d98775ebfd452651cfc62bc1495d33488

  • SHA256

    6654c75acd136f37aad63d828eea396361326bb422a91563998ff0302de2bd20

  • SHA512

    66512d06d54a70ae5e5d4a095d0fde690dc3a126546691cb08b56afb858eaa07575d9d9fdce659ccc15099c5fc2fd2e42926c1e9905452cf7b19358ec1e80557

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

185.19.85.134:6666

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    cupp.exe

  • copy_folder

    cupp

  • delete_file

    false

  • 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_jmmfqvqtrcqvysy

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

Signatures

  • Remcos

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 34 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Delays execution with timeout.exe 2 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\W0rld cup_QATAR 2022 STADIUM PROJECT ONGOING PR0JECT.exe
    "C:\Users\Admin\AppData\Local\Temp\W0rld cup_QATAR 2022 STADIUM PROJECT ONGOING PR0JECT.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1852
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:3512
    • C:\Users\Admin\AppData\Local\Temp\W0rld cup_QATAR 2022 STADIUM PROJECT ONGOING PR0JECT.exe
      "C:\Users\Admin\AppData\Local\Temp\W0rld cup_QATAR 2022 STADIUM PROJECT ONGOING PR0JECT.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3708
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:740
        • C:\Windows\SysWOW64\PING.EXE
          PING 127.0.0.1 -n 2
          4⤵
          • Runs ping.exe
          PID:2208
        • C:\Users\Admin\AppData\Roaming\cupp\cupp.exe
          "C:\Users\Admin\AppData\Roaming\cupp\cupp.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:992
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c timeout 1
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1240
            • C:\Windows\SysWOW64\timeout.exe
              timeout 1
              6⤵
              • Delays execution with timeout.exe
              PID:1952
          • C:\Users\Admin\AppData\Roaming\cupp\cupp.exe
            "C:\Users\Admin\AppData\Roaming\cupp\cupp.exe"
            5⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            PID:2528
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1852 -s 2368
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3856

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\install.bat
    MD5

    1ce0c81c3f00022f95124481eb658eba

    SHA1

    fd96293f9693f001ff351d80a4c24f320a609867

    SHA256

    61c71eb5606e7786820dd7834a9c450d68d4424c68582febc17aa450681c22bc

    SHA512

    1988b09f47898a04f737284081aa4a090ec9f534167cedddfdb5e3d3f40708379d2fbafb8b34104e1f6c50f8adc5c9b65bf4f47c270ef410b36a9f77687c95c6

  • C:\Users\Admin\AppData\Roaming\cupp\cupp.exe
    MD5

    338ffcaf3397eb562228788f41c0268a

    SHA1

    544a8b8d98775ebfd452651cfc62bc1495d33488

    SHA256

    6654c75acd136f37aad63d828eea396361326bb422a91563998ff0302de2bd20

    SHA512

    66512d06d54a70ae5e5d4a095d0fde690dc3a126546691cb08b56afb858eaa07575d9d9fdce659ccc15099c5fc2fd2e42926c1e9905452cf7b19358ec1e80557

  • C:\Users\Admin\AppData\Roaming\cupp\cupp.exe
    MD5

    338ffcaf3397eb562228788f41c0268a

    SHA1

    544a8b8d98775ebfd452651cfc62bc1495d33488

    SHA256

    6654c75acd136f37aad63d828eea396361326bb422a91563998ff0302de2bd20

    SHA512

    66512d06d54a70ae5e5d4a095d0fde690dc3a126546691cb08b56afb858eaa07575d9d9fdce659ccc15099c5fc2fd2e42926c1e9905452cf7b19358ec1e80557

  • C:\Users\Admin\AppData\Roaming\cupp\cupp.exe
    MD5

    338ffcaf3397eb562228788f41c0268a

    SHA1

    544a8b8d98775ebfd452651cfc62bc1495d33488

    SHA256

    6654c75acd136f37aad63d828eea396361326bb422a91563998ff0302de2bd20

    SHA512

    66512d06d54a70ae5e5d4a095d0fde690dc3a126546691cb08b56afb858eaa07575d9d9fdce659ccc15099c5fc2fd2e42926c1e9905452cf7b19358ec1e80557

  • memory/740-124-0x0000000000000000-mapping.dmp
  • memory/992-134-0x0000000004D70000-0x0000000004D71000-memory.dmp
    Filesize

    4KB

  • memory/992-128-0x0000000000000000-mapping.dmp
  • memory/1240-136-0x0000000000000000-mapping.dmp
  • memory/1852-116-0x00000000053A0000-0x00000000053A1000-memory.dmp
    Filesize

    4KB

  • memory/1852-121-0x0000000007000000-0x0000000007001000-memory.dmp
    Filesize

    4KB

  • memory/1852-117-0x0000000005C80000-0x0000000005C81000-memory.dmp
    Filesize

    4KB

  • memory/1852-118-0x0000000001400000-0x000000000145E000-memory.dmp
    Filesize

    376KB

  • memory/1852-114-0x0000000000B80000-0x0000000000B81000-memory.dmp
    Filesize

    4KB

  • memory/1952-137-0x0000000000000000-mapping.dmp
  • memory/2208-126-0x0000000000000000-mapping.dmp
  • memory/2504-119-0x0000000000000000-mapping.dmp
  • memory/2528-140-0x000000000040FD88-mapping.dmp
  • memory/2528-142-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB

  • memory/3512-120-0x0000000000000000-mapping.dmp
  • memory/3708-127-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB

  • memory/3708-123-0x000000000040FD88-mapping.dmp
  • memory/3708-122-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB