Analysis

  • max time kernel
    188s
  • max time network
    200s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2022 16:24

General

  • Target

    9f81e30a0a0c6da5d18394f64e21082b45642607b95d83def6222b053f74cef1.exe

  • Size

    428KB

  • MD5

    4706ee52cbd9511c933c2fd42ecfd6b0

  • SHA1

    6ee01365aeff8d50119912dd207156b480ef0cb2

  • SHA256

    9f81e30a0a0c6da5d18394f64e21082b45642607b95d83def6222b053f74cef1

  • SHA512

    fdf2e84edadc73a730807a776ac75d1397aa9f9d4570c878745a3a673c1acddd62f44853e4d9e94f8935ba515d832eacb73dbd2f4de28a6de2ba95148f580840

  • SSDEEP

    12288:huMw+Bi8vvrHxVPKyv2m77sZB07FxObO32Y:hHwn8vrx52t07FQaj

Malware Config

Extracted

Family

cybergate

Version

v3.4.2.2

Botnet

1

C2

95.182.34.83:81

Mutex

2XC28T623TIA46

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    install

  • install_file

    server.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Remote Administration anywhere in the world.

  • message_box_title

    CyberGate

  • password

    1

  • regkey_hkcu

    HKCU

  • regkey_hklm

    HKLM

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
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 9 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in Windows directory 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1268
      • C:\Users\Admin\AppData\Local\Temp\9f81e30a0a0c6da5d18394f64e21082b45642607b95d83def6222b053f74cef1.exe
        "C:\Users\Admin\AppData\Local\Temp\9f81e30a0a0c6da5d18394f64e21082b45642607b95d83def6222b053f74cef1.exe"
        2⤵
        • Adds policy Run key to start application
        • Modifies Installed Components in the registry
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1764
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:1176
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Drops file in Windows directory
          • Suspicious use of AdjustPrivilegeToken
          PID:1532

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    3
    T1060

    Defense Evasion

    Modify Registry

    3
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Admin2.txt
      Filesize

      385KB

      MD5

      eab19b6851390ecdf639e5d4eb7b9c30

      SHA1

      83195bc4ad1c76fd697a4e2ef7bf8f2df60c5a96

      SHA256

      9a01133144890dcd7055b2a06a9bff6428fca5cead4f87905d5268f1711e6140

      SHA512

      3f0f8c50813da391c2e157fbda6d1e53f9a08b972d681e1f3328fc37fd3bb72b7921849f05540eea711896c7cd4aca7b84d1474d66b01ec2a4dd7b1d4f451ad4

    • C:\Windows\install\server.exe
      Filesize

      428KB

      MD5

      4706ee52cbd9511c933c2fd42ecfd6b0

      SHA1

      6ee01365aeff8d50119912dd207156b480ef0cb2

      SHA256

      9f81e30a0a0c6da5d18394f64e21082b45642607b95d83def6222b053f74cef1

      SHA512

      fdf2e84edadc73a730807a776ac75d1397aa9f9d4570c878745a3a673c1acddd62f44853e4d9e94f8935ba515d832eacb73dbd2f4de28a6de2ba95148f580840

    • memory/1176-64-0x00000000752A1000-0x00000000752A3000-memory.dmp
      Filesize

      8KB

    • memory/1176-85-0x0000000010480000-0x00000000104F0000-memory.dmp
      Filesize

      448KB

    • memory/1176-62-0x0000000000000000-mapping.dmp
    • memory/1176-70-0x0000000010480000-0x00000000104F0000-memory.dmp
      Filesize

      448KB

    • memory/1176-71-0x0000000010480000-0x00000000104F0000-memory.dmp
      Filesize

      448KB

    • memory/1268-59-0x0000000010410000-0x0000000010480000-memory.dmp
      Filesize

      448KB

    • memory/1532-83-0x00000000104F0000-0x0000000010560000-memory.dmp
      Filesize

      448KB

    • memory/1532-75-0x0000000000000000-mapping.dmp
    • memory/1532-84-0x00000000104F0000-0x0000000010560000-memory.dmp
      Filesize

      448KB

    • memory/1532-86-0x00000000104F0000-0x0000000010560000-memory.dmp
      Filesize

      448KB

    • memory/1764-56-0x0000000010410000-0x0000000010480000-memory.dmp
      Filesize

      448KB

    • memory/1764-78-0x00000000104F0000-0x0000000010560000-memory.dmp
      Filesize

      448KB

    • memory/1764-65-0x0000000010480000-0x00000000104F0000-memory.dmp
      Filesize

      448KB

    • memory/1764-54-0x00000000767F1000-0x00000000767F3000-memory.dmp
      Filesize

      8KB