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Analysis

  • max time kernel
    175s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/12/2022, 23:25

General

  • Target

    ab4fd5313e3fac585c04d0a6735724fac0824bb6a06efc8bb6b1b9aa1a6948b3.exe

  • Size

    277KB

  • MD5

    53bd7b9ee969bced0bb4b0f62fd0772e

  • SHA1

    a7cb2cb9efa73c4873b7a8f6bb1479b2783a6667

  • SHA256

    ab4fd5313e3fac585c04d0a6735724fac0824bb6a06efc8bb6b1b9aa1a6948b3

  • SHA512

    87d5df224b81fac0b323af9012c4716d1dd795dad1afc0c413a4af181b497b35205ff67f7d3113bb2bc35129c6fbcc2f42605595ccb4148acad4c6b5b1b18f3f

  • SSDEEP

    6144:ak4qmsI+RGqjMsKslxSwQvu49myE8KjhFE2kuT0Vfo5J2N//YL5A4v:F9DndlYwQvu49mgODkzUJ2N//o3

Malware Config

Extracted

Family

cybergate

Version

2.7 Beta 02

Botnet

chiheb

C2

hack-bifrost.no-ip.org:81

Mutex

***MUTEX***

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

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    chiheb

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 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • UPX packed file 11 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab4fd5313e3fac585c04d0a6735724fac0824bb6a06efc8bb6b1b9aa1a6948b3.exe
    "C:\Users\Admin\AppData\Local\Temp\ab4fd5313e3fac585c04d0a6735724fac0824bb6a06efc8bb6b1b9aa1a6948b3.exe"
    1⤵
    • Adds policy Run key to start application
    • Modifies Installed Components in the registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2064
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      2⤵
        PID:652
      • C:\Users\Admin\AppData\Local\Temp\ab4fd5313e3fac585c04d0a6735724fac0824bb6a06efc8bb6b1b9aa1a6948b3.exe
        "C:\Users\Admin\AppData\Local\Temp\ab4fd5313e3fac585c04d0a6735724fac0824bb6a06efc8bb6b1b9aa1a6948b3.exe"
        2⤵
        • Checks computer location settings
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1848
        • C:\dir\install\install\server.exe
          "C:\dir\install\install\server.exe"
          3⤵
          • Executes dropped EXE
          PID:3768
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3768 -s 556
            4⤵
            • Program crash
            PID:5012
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3768 -ip 3768
      1⤵
        PID:4844

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        230KB

        MD5

        b6781074a3a122820ae84821f5f37f94

        SHA1

        843da159272975356ec7fe1b754ea08e31ef6542

        SHA256

        0e7beccec7c8195b5ac932a8a916d2dc212f713741771aff9b09d644fe336c51

        SHA512

        736244bf68fd85ba949b69584707e119cfece322589715238ed03ff116ee26434ad91c1620c0bd494106c770021750e3f7047d64c7c7bd5fe749705d90f66435

      • C:\dir\install\install\server.exe

        Filesize

        277KB

        MD5

        53bd7b9ee969bced0bb4b0f62fd0772e

        SHA1

        a7cb2cb9efa73c4873b7a8f6bb1479b2783a6667

        SHA256

        ab4fd5313e3fac585c04d0a6735724fac0824bb6a06efc8bb6b1b9aa1a6948b3

        SHA512

        87d5df224b81fac0b323af9012c4716d1dd795dad1afc0c413a4af181b497b35205ff67f7d3113bb2bc35129c6fbcc2f42605595ccb4148acad4c6b5b1b18f3f

      • C:\dir\install\install\server.exe

        Filesize

        277KB

        MD5

        53bd7b9ee969bced0bb4b0f62fd0772e

        SHA1

        a7cb2cb9efa73c4873b7a8f6bb1479b2783a6667

        SHA256

        ab4fd5313e3fac585c04d0a6735724fac0824bb6a06efc8bb6b1b9aa1a6948b3

        SHA512

        87d5df224b81fac0b323af9012c4716d1dd795dad1afc0c413a4af181b497b35205ff67f7d3113bb2bc35129c6fbcc2f42605595ccb4148acad4c6b5b1b18f3f

      • memory/1848-140-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/1848-144-0x0000000024080000-0x00000000240E2000-memory.dmp

        Filesize

        392KB

      • memory/1848-148-0x0000000024080000-0x00000000240E2000-memory.dmp

        Filesize

        392KB

      • memory/2064-141-0x0000000024080000-0x00000000240E2000-memory.dmp

        Filesize

        392KB

      • memory/2064-145-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/2064-132-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/2064-135-0x0000000024010000-0x0000000024072000-memory.dmp

        Filesize

        392KB

      • memory/2064-133-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/3768-151-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB