Analysis

  • max time kernel
    150s
  • 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
    06/11/2022, 09:07

General

  • Target

    4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833.exe

  • Size

    461KB

  • MD5

    063ff71b72736da808960ea600dd1480

  • SHA1

    7c431d0d97df53217645964234d38e8e5b210f16

  • SHA256

    4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833

  • SHA512

    ba08d2c3c5756c7b623eb64e834587ebd63d8ea6669e82474401a20c0f4e5bfc95f4d28b590274bd6e517b07b283b1e49f06a0dff59761e86d3c9a727abba32c

  • SSDEEP

    12288:flEJ2XPju8f2DS1/4ZhUkPWpyF8ZAl5h3mMRxo:NEg7unhUHE8mhw

Malware Config

Extracted

Family

cybergate

Version

v1.03.0

C2

dunderburken.no-ip.biz:82

Mutex

17U1X2F2WT4L02

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    csrss.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

    q16469822

  • 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
  • Executes dropped EXE 4 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.

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Drops file in System32 directory 5 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 34 IoCs
  • Modifies registry class 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2736
      • C:\Users\Admin\AppData\Local\Temp\4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833.exe
        "C:\Users\Admin\AppData\Local\Temp\4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833.exe"
        2⤵
        • Drops startup file
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4800
        • C:\Windows\SysWOW64\cmd.exe
          /c net stop MpsSvc
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4580
          • C:\Windows\SysWOW64\net.exe
            net stop MpsSvc
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4980
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop MpsSvc
              5⤵
                PID:4900
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            3⤵
            • Modifies Internet Explorer settings
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:3464
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3464 CREDAT:17410 /prefetch:2
              4⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:1104
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3464 CREDAT:17414 /prefetch:2
              4⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:1664
          • C:\Users\Admin\AppData\Local\Temp\4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833.exe
            C:\Users\Admin\AppData\Local\Temp\4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833.exe
            3⤵
            • Adds policy Run key to start application
            • Executes dropped EXE
            • 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:2196
            • C:\Windows\SysWOW64\explorer.exe
              explorer.exe
              4⤵
              • Modifies Installed Components in the registry
              PID:2924
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              4⤵
                PID:4180
              • C:\Users\Admin\AppData\Local\Temp\4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833.exe
                "C:\Users\Admin\AppData\Local\Temp\4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833.exe"
                4⤵
                • Executes dropped EXE
                • Checks computer location settings
                • Drops file in System32 directory
                • Modifies registry class
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of AdjustPrivilegeToken
                PID:2288
                • C:\Windows\SysWOW64\install\server.exe
                  "C:\Windows\system32\install\server.exe"
                  5⤵
                  • Executes dropped EXE
                  • Drops startup file
                  • Adds Run key to start application
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Suspicious behavior: EnumeratesProcesses
                  PID:4700
                  • C:\Windows\SysWOW64\cmd.exe
                    /c net stop MpsSvc
                    6⤵
                      PID:4588
                      • C:\Windows\SysWOW64\net.exe
                        net stop MpsSvc
                        7⤵
                          PID:4724
                          • C:\Windows\SysWOW64\net1.exe
                            C:\Windows\system32\net1 stop MpsSvc
                            8⤵
                              PID:3604
                        • C:\Program Files\Internet Explorer\iexplore.exe
                          "C:\Program Files\Internet Explorer\iexplore.exe"
                          6⤵
                          • Modifies Internet Explorer settings
                          PID:4248
                        • C:\Windows\SysWOW64\install\server.exe
                          C:\Windows\SysWOW64\install\server.exe
                          6⤵
                          • Executes dropped EXE
                          • Suspicious behavior: EnumeratesProcesses
                          PID:1112

              Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                      Filesize

                      471B

                      MD5

                      2d2178c4ba2e01df79b6e787caecd70e

                      SHA1

                      32feba9571993a2bdccc68d6de1bdd68f82cfbf8

                      SHA256

                      ba9dee61d1e95e7b33bdf223da96a8348a890459853c5437cd7981520d43849d

                      SHA512

                      23d8a224158a47ed813aa0ffec86f915fe28eaed3612f0e93be64bef5bfe08044730a550a3b7546e131fc3810c39defd6602ef30ed2f058336b8e7c5b5cd238c

                    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                      Filesize

                      434B

                      MD5

                      a3856e64a40b8abd16376b0207dccb3a

                      SHA1

                      826d958b19f7ffabec3f191ac46aa9dbe1e46af5

                      SHA256

                      aac5cff7c8300b756c1716ee6932671eaa38fbf9a60034342c16039225d40f01

                      SHA512

                      8841ba0aac78b4fa36bbb875683bd1d8cf52beb306ff67c1840c727452f139326b0f9c90b43524fd9d336d7e2eccb2e5316e3dad91dbc9fb6cd7917d3b160b2e

                    • C:\Users\Admin\AppData\Local\Temp\4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833.exe

                      Filesize

                      461KB

                      MD5

                      063ff71b72736da808960ea600dd1480

                      SHA1

                      7c431d0d97df53217645964234d38e8e5b210f16

                      SHA256

                      4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833

                      SHA512

                      ba08d2c3c5756c7b623eb64e834587ebd63d8ea6669e82474401a20c0f4e5bfc95f4d28b590274bd6e517b07b283b1e49f06a0dff59761e86d3c9a727abba32c

                    • C:\Users\Admin\AppData\Local\Temp\4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833.exe

                      Filesize

                      461KB

                      MD5

                      063ff71b72736da808960ea600dd1480

                      SHA1

                      7c431d0d97df53217645964234d38e8e5b210f16

                      SHA256

                      4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833

                      SHA512

                      ba08d2c3c5756c7b623eb64e834587ebd63d8ea6669e82474401a20c0f4e5bfc95f4d28b590274bd6e517b07b283b1e49f06a0dff59761e86d3c9a727abba32c

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

                      Filesize

                      221KB

                      MD5

                      eb38fe298ebff2c3350762d8d31ea2f1

                      SHA1

                      137f3689e670c8f6321cb0019f667873bd3a4989

                      SHA256

                      eb306b1374ec1e239104d8a638c18d76111e9b2f570d35d4c15fb028909fef8c

                      SHA512

                      f556cc5d9f4dc265dfc0a5640a725fa2b4c7e73a8a18df45d4ccd04c07040d2f51e0cae65d010d884421523fa86589afa2d7d63253a404a334c83f7cb0fa87f1

                    • C:\Users\Admin\AppData\Roaming\InstallDir\help.exe

                      Filesize

                      461KB

                      MD5

                      063ff71b72736da808960ea600dd1480

                      SHA1

                      7c431d0d97df53217645964234d38e8e5b210f16

                      SHA256

                      4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833

                      SHA512

                      ba08d2c3c5756c7b623eb64e834587ebd63d8ea6669e82474401a20c0f4e5bfc95f4d28b590274bd6e517b07b283b1e49f06a0dff59761e86d3c9a727abba32c

                    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system.pif

                      Filesize

                      461KB

                      MD5

                      063ff71b72736da808960ea600dd1480

                      SHA1

                      7c431d0d97df53217645964234d38e8e5b210f16

                      SHA256

                      4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833

                      SHA512

                      ba08d2c3c5756c7b623eb64e834587ebd63d8ea6669e82474401a20c0f4e5bfc95f4d28b590274bd6e517b07b283b1e49f06a0dff59761e86d3c9a727abba32c

                    • C:\Windows\SysWOW64\install\server.exe

                      Filesize

                      461KB

                      MD5

                      063ff71b72736da808960ea600dd1480

                      SHA1

                      7c431d0d97df53217645964234d38e8e5b210f16

                      SHA256

                      4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833

                      SHA512

                      ba08d2c3c5756c7b623eb64e834587ebd63d8ea6669e82474401a20c0f4e5bfc95f4d28b590274bd6e517b07b283b1e49f06a0dff59761e86d3c9a727abba32c

                    • C:\Windows\SysWOW64\install\server.exe

                      Filesize

                      461KB

                      MD5

                      063ff71b72736da808960ea600dd1480

                      SHA1

                      7c431d0d97df53217645964234d38e8e5b210f16

                      SHA256

                      4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833

                      SHA512

                      ba08d2c3c5756c7b623eb64e834587ebd63d8ea6669e82474401a20c0f4e5bfc95f4d28b590274bd6e517b07b283b1e49f06a0dff59761e86d3c9a727abba32c

                    • C:\Windows\SysWOW64\install\server.exe

                      Filesize

                      461KB

                      MD5

                      063ff71b72736da808960ea600dd1480

                      SHA1

                      7c431d0d97df53217645964234d38e8e5b210f16

                      SHA256

                      4185a8ba8d66c11aa83da5d388f033e82f3aeed64dbf5e63b363a38394a01833

                      SHA512

                      ba08d2c3c5756c7b623eb64e834587ebd63d8ea6669e82474401a20c0f4e5bfc95f4d28b590274bd6e517b07b283b1e49f06a0dff59761e86d3c9a727abba32c

                    • memory/1112-180-0x0000000000400000-0x000000000044C000-memory.dmp

                      Filesize

                      304KB

                    • memory/1112-181-0x0000000000400000-0x000000000044C000-memory.dmp

                      Filesize

                      304KB

                    • memory/1112-182-0x0000000000400000-0x000000000044C000-memory.dmp

                      Filesize

                      304KB

                    • memory/2196-162-0x0000000024160000-0x00000000241C1000-memory.dmp

                      Filesize

                      388KB

                    • memory/2196-137-0x0000000000400000-0x000000000044C000-memory.dmp

                      Filesize

                      304KB

                    • memory/2196-156-0x00000000240F0000-0x0000000024151000-memory.dmp

                      Filesize

                      388KB

                    • memory/2196-139-0x0000000000400000-0x000000000044C000-memory.dmp

                      Filesize

                      304KB

                    • memory/2196-140-0x0000000000400000-0x000000000044C000-memory.dmp

                      Filesize

                      304KB

                    • memory/2196-141-0x0000000000400000-0x000000000044C000-memory.dmp

                      Filesize

                      304KB

                    • memory/2196-166-0x0000000000400000-0x000000000044C000-memory.dmp

                      Filesize

                      304KB

                    • memory/2196-143-0x0000000024010000-0x0000000024071000-memory.dmp

                      Filesize

                      388KB

                    • memory/2196-148-0x0000000024080000-0x00000000240E1000-memory.dmp

                      Filesize

                      388KB

                    • memory/2288-165-0x0000000024160000-0x00000000241C1000-memory.dmp

                      Filesize

                      388KB

                    • memory/2288-184-0x0000000024160000-0x00000000241C1000-memory.dmp

                      Filesize

                      388KB

                    • memory/2288-167-0x0000000024160000-0x00000000241C1000-memory.dmp

                      Filesize

                      388KB

                    • memory/2924-151-0x0000000024080000-0x00000000240E1000-memory.dmp

                      Filesize

                      388KB

                    • memory/2924-152-0x0000000024080000-0x00000000240E1000-memory.dmp

                      Filesize

                      388KB

                    • memory/2924-183-0x0000000024080000-0x00000000240E1000-memory.dmp

                      Filesize

                      388KB

                    • memory/4800-135-0x0000000000670000-0x0000000000674000-memory.dmp

                      Filesize

                      16KB