Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    13/02/2024, 05:36

General

  • Target

    Specifications.scr

  • Size

    1020KB

  • MD5

    f03e14fede667def5971cd05001ac26e

  • SHA1

    c3b194d8b0d66a3a7aa540123f9191f06632c31a

  • SHA256

    a090d4d19e61d32cc67cbbcd57124becd412d1e9f7d8d8ed896da4d2d689dc7f

  • SHA512

    e38eaa3b4720cd0e0fd002f9d9067991c7b2ded1335a0a8d8872b96ec498a3231bdf99c1347e701b0bf23631e27a2569d62b0671a009562f9effb932c2ff3ff1

  • SSDEEP

    24576:MtS2xc3m8Y83BarJ3OJJwFcx9wyeZBMI4mCJFix:MQ2x+b3BaN3mwF6yJXWFi

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

lora1.taiwantradeglobal.com:2404

lora2.taiwantradeglobal.com:2404

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-R9UMK0

  • 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.

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 53 IoCs
  • 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).

  • 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Specifications.scr
    "C:\Users\Admin\AppData\Local\Temp\Specifications.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Specifications.scr"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2604
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QfWagJoK.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2608
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QfWagJoK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6A19.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2052
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:2460

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp6A19.tmp

      Filesize

      1KB

      MD5

      91aeacf918eb0be0d9298706b5b0ac00

      SHA1

      c1610d2839d57a2ac9d6faf033aaf68d0b19cef5

      SHA256

      83edfdcda4e31d4c1e0593b355bb73299b6f912bd447affc213445448754c749

      SHA512

      a3bba4a8c5475e2d9d9457f1f4fcd4742b27686570e9302660b0b6df5cd2b5e0ecb041da1d1d079d153454032ea908a76a93aed403f4e0d1a5c57d8a80801e15

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\16AB8O3KIYJ9WWLVY74Y.temp

      Filesize

      7KB

      MD5

      a733b61a46ef489207db40b2431ebae6

      SHA1

      4d7a4f6b9f800a1044985fa3416997a2bd7df7fa

      SHA256

      111dcabece2c29892d88b7acb65d019408bf5c0508fcfd17ba9428b18e24b6bc

      SHA512

      2060fb5864630681b1d6662b7836db10ec2216c5aff28f10c3eb935c9b4ed3963e7acff1bad9c175d385828492af4ddb95dbfb6ba47c23971a1ad53777f06930

    • memory/2360-40-0x0000000074810000-0x0000000074EFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2360-1-0x0000000074810000-0x0000000074EFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2360-2-0x00000000007A0000-0x00000000007E0000-memory.dmp

      Filesize

      256KB

    • memory/2360-3-0x0000000000590000-0x00000000005A4000-memory.dmp

      Filesize

      80KB

    • memory/2360-4-0x0000000000790000-0x000000000079A000-memory.dmp

      Filesize

      40KB

    • memory/2360-5-0x0000000000980000-0x000000000098E000-memory.dmp

      Filesize

      56KB

    • memory/2360-6-0x0000000004FE0000-0x00000000050A0000-memory.dmp

      Filesize

      768KB

    • memory/2360-7-0x0000000074810000-0x0000000074EFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2360-8-0x00000000007A0000-0x00000000007E0000-memory.dmp

      Filesize

      256KB

    • memory/2360-0-0x00000000011C0000-0x00000000012C2000-memory.dmp

      Filesize

      1.0MB

    • memory/2460-72-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-57-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-24-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-25-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-96-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-95-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-94-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-93-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-31-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-33-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-34-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-35-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-29-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-37-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-36-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

      Filesize

      4KB

    • memory/2460-92-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-41-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-39-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-27-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-42-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-43-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-90-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-89-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-46-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-47-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-48-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-49-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-51-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-52-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-53-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-54-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-55-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-56-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-88-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-58-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-59-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-60-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-61-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-63-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-64-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-65-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-67-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-68-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-69-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-71-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-86-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-73-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-74-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-76-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-77-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-78-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-80-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-81-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-82-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-83-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-84-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2460-85-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2604-45-0x000000006F0C0000-0x000000006F66B000-memory.dmp

      Filesize

      5.7MB

    • memory/2604-22-0x000000006F0C0000-0x000000006F66B000-memory.dmp

      Filesize

      5.7MB

    • memory/2604-32-0x00000000002F0000-0x0000000000330000-memory.dmp

      Filesize

      256KB

    • memory/2604-30-0x00000000002F0000-0x0000000000330000-memory.dmp

      Filesize

      256KB

    • memory/2604-26-0x000000006F0C0000-0x000000006F66B000-memory.dmp

      Filesize

      5.7MB

    • memory/2608-21-0x000000006F0C0000-0x000000006F66B000-memory.dmp

      Filesize

      5.7MB

    • memory/2608-23-0x0000000002F20000-0x0000000002F60000-memory.dmp

      Filesize

      256KB

    • memory/2608-44-0x000000006F0C0000-0x000000006F66B000-memory.dmp

      Filesize

      5.7MB

    • memory/2608-28-0x000000006F0C0000-0x000000006F66B000-memory.dmp

      Filesize

      5.7MB