Analysis

  • max time kernel
    155s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 15:50

General

  • Target

    1a88c86f9a55b22565abee0cbbf955c0c473f2a34b6ecef7878e945cd9d03e44.exe

  • Size

    444KB

  • MD5

    5346ec6639922dd02995305de4f83239

  • SHA1

    3680704e055bde63cb570ccf3a96a99bc0a5a625

  • SHA256

    1a88c86f9a55b22565abee0cbbf955c0c473f2a34b6ecef7878e945cd9d03e44

  • SHA512

    bd620fd2c9f75beaa41e88653991cb44b6b5a958677faacf715d6cacab4e3eecd4c36e50ff6e0862b0077eeaf64f7cc54822d1bd1df01d91b9661613811dbc63

  • SSDEEP

    12288:lcD66JbZ2zkPaCx5iQ5g+wqBnACSDjaKg0d:lKZOklRg+wqge0d

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

Explore

C2

sa3od.no-ip.biz:82

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    svchost.exe

  • install_dir

    Explore

  • 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

    123456

  • regkey_hkcu

    HKCU

  • regkey_hklm

    HKLM

Signatures

  • CyberGate, Rebhip

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

  • Executes dropped EXE 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 10 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
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 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:3048
      • C:\Users\Admin\AppData\Local\Temp\1a88c86f9a55b22565abee0cbbf955c0c473f2a34b6ecef7878e945cd9d03e44.exe
        "C:\Users\Admin\AppData\Local\Temp\1a88c86f9a55b22565abee0cbbf955c0c473f2a34b6ecef7878e945cd9d03e44.exe"
        2⤵
        • 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:884
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:4840
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:3408
          • C:\Users\Admin\AppData\Local\Temp\1a88c86f9a55b22565abee0cbbf955c0c473f2a34b6ecef7878e945cd9d03e44.exe
            "C:\Users\Admin\AppData\Local\Temp\1a88c86f9a55b22565abee0cbbf955c0c473f2a34b6ecef7878e945cd9d03e44.exe"
            3⤵
            • Checks computer location settings
            • Drops file in System32 directory
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:4752
            • C:\Windows\SysWOW64\Explore\windows.exe
              "C:\Windows\system32\Explore\windows.exe"
              4⤵
              • Executes dropped EXE
              PID:3536
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 560
                5⤵
                • Program crash
                PID:4228
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3536 -ip 3536
        1⤵
          PID:3964

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Persistence

        Registry Run Keys / Startup Folder

        2
        T1060

        Defense Evasion

        Modify Registry

        2
        T1112

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          229KB

          MD5

          07e3901f9b90026d3bbc9aaa91a4f0e2

          SHA1

          0d26ec0e6974c9f8b635a3994faa2481f009804d

          SHA256

          5fa5b251644c09ee3f34435d5e2c5b3280cfd3862d79658914eaaadc7f2732de

          SHA512

          9dd5b7d0adc1210f65cff4271fd94d4e53eb3db601236760d97fba4f201286c7e949935b97da0898617e4d71d0a626faf610623a006b54aad6887d8bd2b7b431

        • C:\Windows\SysWOW64\Explore\windows.exe
          Filesize

          444KB

          MD5

          5346ec6639922dd02995305de4f83239

          SHA1

          3680704e055bde63cb570ccf3a96a99bc0a5a625

          SHA256

          1a88c86f9a55b22565abee0cbbf955c0c473f2a34b6ecef7878e945cd9d03e44

          SHA512

          bd620fd2c9f75beaa41e88653991cb44b6b5a958677faacf715d6cacab4e3eecd4c36e50ff6e0862b0077eeaf64f7cc54822d1bd1df01d91b9661613811dbc63

        • C:\Windows\SysWOW64\Explore\windows.exe
          Filesize

          444KB

          MD5

          5346ec6639922dd02995305de4f83239

          SHA1

          3680704e055bde63cb570ccf3a96a99bc0a5a625

          SHA256

          1a88c86f9a55b22565abee0cbbf955c0c473f2a34b6ecef7878e945cd9d03e44

          SHA512

          bd620fd2c9f75beaa41e88653991cb44b6b5a958677faacf715d6cacab4e3eecd4c36e50ff6e0862b0077eeaf64f7cc54822d1bd1df01d91b9661613811dbc63

        • memory/884-133-0x0000000024010000-0x0000000024072000-memory.dmp
          Filesize

          392KB

        • memory/884-138-0x0000000024080000-0x00000000240E2000-memory.dmp
          Filesize

          392KB

        • memory/884-151-0x0000000024160000-0x00000000241C2000-memory.dmp
          Filesize

          392KB

        • memory/884-146-0x00000000240F0000-0x0000000024152000-memory.dmp
          Filesize

          392KB

        • memory/3536-156-0x0000000000000000-mapping.dmp
        • memory/4752-150-0x0000000000000000-mapping.dmp
        • memory/4752-154-0x0000000024160000-0x00000000241C2000-memory.dmp
          Filesize

          392KB

        • memory/4752-155-0x0000000024160000-0x00000000241C2000-memory.dmp
          Filesize

          392KB

        • memory/4752-159-0x0000000024160000-0x00000000241C2000-memory.dmp
          Filesize

          392KB

        • memory/4840-142-0x0000000024080000-0x00000000240E2000-memory.dmp
          Filesize

          392KB

        • memory/4840-141-0x0000000024080000-0x00000000240E2000-memory.dmp
          Filesize

          392KB

        • memory/4840-137-0x0000000000000000-mapping.dmp
        • memory/4840-158-0x0000000024080000-0x00000000240E2000-memory.dmp
          Filesize

          392KB