Analysis

  • max time kernel
    196s
  • max time network
    201s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 14:40

General

  • Target

    Mbijsjhkhg.exe

  • Size

    2.1MB

  • MD5

    c97b3b35d80c4de9c962f0ef0548e10b

  • SHA1

    d7c22a26e890a4e9389cd813db24594827c4abdc

  • SHA256

    f7ae4fb26c7e49ea1ef647606aefa29ecbf18618759ef24ecef23a5ad88e28af

  • SHA512

    af30768fe4b4d15066650804bc8ae245d69fedc68730f15000104e197febca1e0b5ad4812df87429a37a2f242fff7dcd57fd82859a17afddcfcbc60006ae789f

  • SSDEEP

    49152:6vf38Lkwg6Nzs/rK57ZrYIKbarJl03eFwDHhsVTmvmxU0ySKz:Gf3Skz6Nl3rcbarJ0eyls4y1K

Malware Config

Extracted

Family

remcos

Version

2.7.1 Pro

Botnet

GODSWILLING

C2

185.206.225.59:28027

127.0.0.1:28027

10.25.197.156:28027

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-IMAS3P

  • 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

    wikipedia;solitaire;

Signatures

  • Remcos

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Mbijsjhkhg.exe
    "C:\Users\Admin\AppData\Local\Temp\Mbijsjhkhg.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1344
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAzAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2032
    • C:\Users\Admin\AppData\Local\Temp\Mbijsjhkhg.exe
      C:\Users\Admin\AppData\Local\Temp\Mbijsjhkhg.exe
      2⤵
        PID:292

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/292-69-0x0000000000400000-0x0000000000421000-memory.dmp
      Filesize

      132KB

    • memory/292-72-0x0000000000413FA4-mapping.dmp
    • memory/292-63-0x0000000000400000-0x0000000000421000-memory.dmp
      Filesize

      132KB

    • memory/292-76-0x0000000000400000-0x0000000000421000-memory.dmp
      Filesize

      132KB

    • memory/292-65-0x0000000000400000-0x0000000000421000-memory.dmp
      Filesize

      132KB

    • memory/292-75-0x0000000000400000-0x0000000000421000-memory.dmp
      Filesize

      132KB

    • memory/292-67-0x0000000000400000-0x0000000000421000-memory.dmp
      Filesize

      132KB

    • memory/292-71-0x0000000000400000-0x0000000000421000-memory.dmp
      Filesize

      132KB

    • memory/292-62-0x0000000000400000-0x0000000000421000-memory.dmp
      Filesize

      132KB

    • memory/292-68-0x0000000000400000-0x0000000000421000-memory.dmp
      Filesize

      132KB

    • memory/1344-55-0x0000000074DE1000-0x0000000074DE3000-memory.dmp
      Filesize

      8KB

    • memory/1344-56-0x0000000005370000-0x0000000005584000-memory.dmp
      Filesize

      2.1MB

    • memory/1344-54-0x0000000001130000-0x000000000134C000-memory.dmp
      Filesize

      2.1MB

    • memory/2032-60-0x000000006E270000-0x000000006E81B000-memory.dmp
      Filesize

      5.7MB

    • memory/2032-59-0x000000006E270000-0x000000006E81B000-memory.dmp
      Filesize

      5.7MB

    • memory/2032-61-0x000000006E270000-0x000000006E81B000-memory.dmp
      Filesize

      5.7MB

    • memory/2032-57-0x0000000000000000-mapping.dmp