Analysis

  • max time kernel
    157s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 11 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⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1444
    • 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:1144
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SzKneWgZlzw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7395.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2036
    • C:\Users\Admin\AppData\Local\Temp\Cheque copy.exe
      "C:\Users\Admin\AppData\Local\Temp\Cheque copy.exe"
      2⤵
        PID:2248
      • C:\Users\Admin\AppData\Local\Temp\Cheque copy.exe
        "C:\Users\Admin\AppData\Local\Temp\Cheque copy.exe"
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:2380

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      46600e1a05113752997a87b8f9c6606f

      SHA1

      be9826312dfaa3b662920a80a66c932db4cb5d69

      SHA256

      5a5fe701e5bf06dbccf7bf5e61fd2597036348fd27d61e0aee1316678a955129

      SHA512

      f9ef45a78ccb5f641eebe29192783c30f4901bb3bf0a1291c7e35447c147375879c8d21269c6e6885a98133bdca11050ac1c8795e4972867ee201763e4c4f817

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bjob5i0v.yuw.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp7395.tmp

      Filesize

      1KB

      MD5

      3c9dbb2a10187a7019b27dc164aea819

      SHA1

      91ae106eb51162a8da28d8af1afe9d4a64d2240e

      SHA256

      371bc721c219ea23fc99c926b98f074e52a82d89b47d53e46ae3ba023a3aebcc

      SHA512

      453e9918aa7e2c9e53dac1f5b7d0bce9633a22fa620e22277e3148f0c2f9af7a91ca9dbea6cbe28a2593c1cdc6cf94df2f9ce3df31f2868582d5eb84b5a10661

    • memory/1144-73-0x00000000071A0000-0x00000000071B1000-memory.dmp

      Filesize

      68KB

    • memory/1144-54-0x0000000002350000-0x0000000002360000-memory.dmp

      Filesize

      64KB

    • memory/1144-83-0x0000000074DE0000-0x0000000075590000-memory.dmp

      Filesize

      7.7MB

    • memory/1144-80-0x00000000072E0000-0x00000000072E8000-memory.dmp

      Filesize

      32KB

    • memory/1144-79-0x0000000007300000-0x000000000731A000-memory.dmp

      Filesize

      104KB

    • memory/1144-78-0x0000000007200000-0x0000000007214000-memory.dmp

      Filesize

      80KB

    • memory/1144-77-0x00000000071F0000-0x00000000071FE000-memory.dmp

      Filesize

      56KB

    • memory/1144-76-0x0000000002350000-0x0000000002360000-memory.dmp

      Filesize

      64KB

    • memory/1144-75-0x0000000002350000-0x0000000002360000-memory.dmp

      Filesize

      64KB

    • memory/1144-74-0x0000000074DE0000-0x0000000075590000-memory.dmp

      Filesize

      7.7MB

    • memory/1144-17-0x00000000046F0000-0x0000000004726000-memory.dmp

      Filesize

      216KB

    • memory/1144-18-0x0000000074DE0000-0x0000000075590000-memory.dmp

      Filesize

      7.7MB

    • memory/1144-72-0x0000000007220000-0x00000000072B6000-memory.dmp

      Filesize

      600KB

    • memory/1144-20-0x0000000002350000-0x0000000002360000-memory.dmp

      Filesize

      64KB

    • memory/1144-21-0x0000000002350000-0x0000000002360000-memory.dmp

      Filesize

      64KB

    • memory/1144-71-0x0000000007010000-0x000000000701A000-memory.dmp

      Filesize

      40KB

    • memory/1144-70-0x0000000006FA0000-0x0000000006FBA000-memory.dmp

      Filesize

      104KB

    • memory/1144-23-0x0000000004D60000-0x0000000005388000-memory.dmp

      Filesize

      6.2MB

    • memory/1144-69-0x00000000075E0000-0x0000000007C5A000-memory.dmp

      Filesize

      6.5MB

    • memory/1144-67-0x0000000006C60000-0x0000000006D03000-memory.dmp

      Filesize

      652KB

    • memory/1144-29-0x0000000004CC0000-0x0000000004CE2000-memory.dmp

      Filesize

      136KB

    • memory/1144-66-0x0000000006230000-0x000000000624E000-memory.dmp

      Filesize

      120KB

    • memory/1144-32-0x0000000005440000-0x00000000054A6000-memory.dmp

      Filesize

      408KB

    • memory/1144-34-0x0000000005660000-0x00000000056C6000-memory.dmp

      Filesize

      408KB

    • memory/1144-56-0x0000000071CE0000-0x0000000071D2C000-memory.dmp

      Filesize

      304KB

    • memory/1144-55-0x0000000006250000-0x0000000006282000-memory.dmp

      Filesize

      200KB

    • memory/1144-53-0x0000000005CD0000-0x0000000005D1C000-memory.dmp

      Filesize

      304KB

    • memory/1144-52-0x0000000005C90000-0x0000000005CAE000-memory.dmp

      Filesize

      120KB

    • memory/1144-46-0x00000000057D0000-0x0000000005B24000-memory.dmp

      Filesize

      3.3MB

    • memory/1444-4-0x0000000005570000-0x0000000005580000-memory.dmp

      Filesize

      64KB

    • memory/1444-6-0x00000000052A0000-0x00000000052BC000-memory.dmp

      Filesize

      112KB

    • memory/1444-1-0x0000000074DE0000-0x0000000075590000-memory.dmp

      Filesize

      7.7MB

    • memory/1444-5-0x0000000005290000-0x000000000529A000-memory.dmp

      Filesize

      40KB

    • memory/1444-2-0x00000000058C0000-0x0000000005E64000-memory.dmp

      Filesize

      5.6MB

    • memory/1444-7-0x0000000005280000-0x000000000528C000-memory.dmp

      Filesize

      48KB

    • memory/1444-8-0x0000000074DE0000-0x0000000075590000-memory.dmp

      Filesize

      7.7MB

    • memory/1444-9-0x0000000005570000-0x0000000005580000-memory.dmp

      Filesize

      64KB

    • memory/1444-10-0x0000000005520000-0x0000000005530000-memory.dmp

      Filesize

      64KB

    • memory/1444-11-0x000000000BBC0000-0x000000000BC78000-memory.dmp

      Filesize

      736KB

    • memory/1444-0-0x0000000000790000-0x0000000000896000-memory.dmp

      Filesize

      1.0MB

    • memory/1444-27-0x0000000074DE0000-0x0000000075590000-memory.dmp

      Filesize

      7.7MB

    • memory/1444-12-0x000000000EC80000-0x000000000ED1C000-memory.dmp

      Filesize

      624KB

    • memory/1444-3-0x0000000005310000-0x00000000053A2000-memory.dmp

      Filesize

      584KB

    • memory/2380-48-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-84-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-26-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-30-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-33-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-40-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-49-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-41-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-24-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-22-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-47-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-51-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-89-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-90-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-97-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-98-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-105-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2380-106-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB