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Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/12/2022, 11:21

General

  • Target

    e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047.exe

  • Size

    754KB

  • MD5

    c5140aef3baa6885a185cca194809f8b

  • SHA1

    ab352ae0e7822236625d7479e6e7e11df0175d3b

  • SHA256

    e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047

  • SHA512

    99e4c6c570a82d067e1660ff6657b2d94914dfb7717e3d2b328e883a65539457d5fab1111c49bdaf0e09609ae060ad9ca714793a53eee4e3f8b1343e2981b71f

  • SSDEEP

    12288:VvQt60sTsdVAlCWnH2YwfqJL7Al0mWfB50/lm82dy9toTY7W2HRhVzCrDYkjW:xQXsDMOHWfqgNWQdv2s9toMWu/VzCXVW

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

ÖÍíÉ

C2

raaboo00.no-ip.org:288

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    svchost.exe

  • install_dir

    eremb

  • install_file

    windows.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    t?tulo da mensagem

  • password

    abcd1234

  • regkey_hkcu

    it

  • regkey_hklm

    ig

Signatures

  • CyberGate, Rebhip

    CyberGate is a lightweight remote administration tool with a wide array of functionalities.

  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 4 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047.exe
    "C:\Users\Admin\AppData\Local\Temp\e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4904
    • C:\Users\Admin\AppData\Local\Temp\e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047.exe
      C:\Users\Admin\AppData\Local\Temp\e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047.exe
      2⤵
      • Adds policy Run key to start application
      • Modifies Installed Components in the registry
      • Adds Run key to start application
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4784
      • C:\Windows\SysWOW64\explorer.exe
        explorer.exe
        3⤵
        • Modifies Installed Components in the registry
        PID:2972
      • C:\Users\Admin\AppData\Local\Temp\e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047.exe
        "C:\Users\Admin\AppData\Local\Temp\e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047.exe"
        3⤵
        • Checks computer location settings
        • Drops file in System32 directory
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:2292
        • C:\windows\SysWOW64\microsoft\eremb\windows.exe
          "C:\windows\system32\microsoft\eremb\windows.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of SetWindowsHookEx
          PID:4476
          • C:\windows\SysWOW64\microsoft\eremb\windows.exe
            C:\windows\SysWOW64\microsoft\eremb\windows.exe
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:3856
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2056

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\XX--XX--XX.txt

      Filesize

      229KB

      MD5

      d9f9dc7d1f92bd720a75ca1ff29efc95

      SHA1

      a007e0b8a69d4ec828d58bec72bec2ba8f1d3d58

      SHA256

      2a77d588dea91a500483d64a72c19c769cdf4fe9404f09d7a115f22e96ccb2d7

      SHA512

      bd13ceea36f97203f20df1d78d1d05c2b8b5f41201c33946461e7194ef91013cfda35250ab727c096fc4cfa2b17d7d50509b3ae472c85816c61b9ea9e634b3a4

    • C:\Windows\SysWOW64\microsoft\eremb\windows.exe

      Filesize

      754KB

      MD5

      c5140aef3baa6885a185cca194809f8b

      SHA1

      ab352ae0e7822236625d7479e6e7e11df0175d3b

      SHA256

      e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047

      SHA512

      99e4c6c570a82d067e1660ff6657b2d94914dfb7717e3d2b328e883a65539457d5fab1111c49bdaf0e09609ae060ad9ca714793a53eee4e3f8b1343e2981b71f

    • C:\Windows\SysWOW64\microsoft\eremb\windows.exe

      Filesize

      754KB

      MD5

      c5140aef3baa6885a185cca194809f8b

      SHA1

      ab352ae0e7822236625d7479e6e7e11df0175d3b

      SHA256

      e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047

      SHA512

      99e4c6c570a82d067e1660ff6657b2d94914dfb7717e3d2b328e883a65539457d5fab1111c49bdaf0e09609ae060ad9ca714793a53eee4e3f8b1343e2981b71f

    • \??\c:\windows\SysWOW64\microsoft\eremb\windows.exe

      Filesize

      754KB

      MD5

      c5140aef3baa6885a185cca194809f8b

      SHA1

      ab352ae0e7822236625d7479e6e7e11df0175d3b

      SHA256

      e49c8ca914cce43fffbf5ebebf7166dd7ae6709e2cef861f2e870c8644ee0047

      SHA512

      99e4c6c570a82d067e1660ff6657b2d94914dfb7717e3d2b328e883a65539457d5fab1111c49bdaf0e09609ae060ad9ca714793a53eee4e3f8b1343e2981b71f

    • memory/2292-162-0x0000000000400000-0x00000000005B0000-memory.dmp

      Filesize

      1.7MB

    • memory/2292-163-0x00000000240F0000-0x0000000024152000-memory.dmp

      Filesize

      392KB

    • memory/2292-160-0x00000000240F0000-0x0000000024152000-memory.dmp

      Filesize

      392KB

    • memory/2292-178-0x00000000240F0000-0x0000000024152000-memory.dmp

      Filesize

      392KB

    • memory/2972-151-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/2972-154-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/3856-174-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/3856-176-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/3856-177-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/4476-175-0x0000000000400000-0x00000000005B0000-memory.dmp

      Filesize

      1.7MB

    • memory/4476-169-0x00000000020D0000-0x0000000002130000-memory.dmp

      Filesize

      384KB

    • memory/4476-168-0x0000000000400000-0x00000000005B0000-memory.dmp

      Filesize

      1.7MB

    • memory/4784-143-0x0000000024010000-0x0000000024072000-memory.dmp

      Filesize

      392KB

    • memory/4784-161-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/4784-157-0x00000000240F0000-0x0000000024152000-memory.dmp

      Filesize

      392KB

    • memory/4784-148-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/4784-141-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/4784-140-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/4784-138-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/4784-137-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/4904-132-0x0000000000400000-0x00000000005B0000-memory.dmp

      Filesize

      1.7MB

    • memory/4904-139-0x0000000000400000-0x00000000005B0000-memory.dmp

      Filesize

      1.7MB

    • memory/4904-135-0x0000000002340000-0x00000000023A0000-memory.dmp

      Filesize

      384KB