Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/03/2024, 03:59

General

  • Target
    b044f5284a7d36a36a3363405207ca06.exe
  • Size 454KB
  • Sample240301-ekjzpacd46
  • SHA256 03b2be7dc944c46239c333604a11747707535e0e8c08611a7513015c9cf02e95
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cybergate

Version
  • 2.6

Botnet
  • vítima

C2
  • 127.0.0.1:81

Mutex
  • bvnbnnnm

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

    abcd1234

  • 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
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 12 IoCs

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

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

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

  • 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 SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3476
      • C:\Users\Admin\AppData\Local\Temp\b044f5284a7d36a36a3363405207ca06.exe
        "C:\Users\Admin\AppData\Local\Temp\b044f5284a7d36a36a3363405207ca06.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1152
        • C:\Users\Admin\AppData\Local\Temp\b044f5284a7d36a36a3363405207ca06.exe
          "C:\Users\Admin\AppData\Local\Temp\b044f5284a7d36a36a3363405207ca06.exe"
          3⤵
          • 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:872
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            PID:4388
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            4⤵
              PID:4672
            • C:\Users\Admin\AppData\Local\Temp\b044f5284a7d36a36a3363405207ca06.exe
              "C:\Users\Admin\AppData\Local\Temp\b044f5284a7d36a36a3363405207ca06.exe"
              4⤵
              • Checks computer location settings
              • Drops file in System32 directory
              • Modifies registry class
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:4832
              • C:\Windows\SysWOW64\install\server.exe
                "C:\Windows\system32\install\server.exe"
                5⤵
                • Executes dropped EXE
                • Drops file in System32 directory
                • Suspicious use of SetThreadContext
                • Suspicious use of SetWindowsHookEx
                PID:1224
                • C:\Windows\SysWOW64\install\server.exe
                  "C:\Windows\SysWOW64\install\server.exe"
                  6⤵
                  • Executes dropped EXE
                  PID:3820
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 560
                    7⤵
                    • Program crash
                    PID:976
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3820 -ip 3820
        1⤵
          PID:1796

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              XX--XX--XX.txt

              • Path C:\Users\Admin\AppData\Local\Temp\XX--XX--XX.txt
              • Size 229KB
              • SHA256 be1fbacd1b3e21c9edafbbe4b6806dcab185b5a45e58ba3a2b5483c9cab23100
              • MD5 SHA1 SHA512 SSDEEP

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 6bb0fcc55634f68113b4db61eb49e2de20a0e67e50b12042fe0046e27271edac
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 238336f017ac7e947495ca402ecf849007567d1882f20cde2bd0467c59e21df9
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 fd6784b8e26aaff662af31d4707588261b1d998ce2d0f21c66804bcf52cdd0e1
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 ff774e30b51ef95b2cb864cb7f1a9283c6b1bdfecc813d6bfc3aca9b5053d7f1
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 390a7ae3f269ebe164d8b777a7094051573294df570314a1db2e7da4c71f3691
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 0bbdbda7ce1a2c49a42a221e609da6f41c71ef80f9d808221f6c5d3559aa36a7
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 d168e2ec44742c4437ea29a3704ea992d33fbe3b940a66e49e1244a188256ad8
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 f5ebb5e533589f9b3e7924fa604128d79ccbe71e90af35b9019e2a07e38fbc45
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 068b24e9f14015dcaa895ba413e75d09bf676d745c40ceb0a072cf0ddf5604d5
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 64dd244a3566c6920a52c8d0cc518fae565d23b60dedfe023a45766d62d49199
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 b8a9646ed5bec50963e817db3154eb6eaa10e411817c7514c3a026bea3b257a6
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 a446e4f37f994f655b03381725f75a4e024750567a8f19fe71dd13cd109767df
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 2665c148757074e51f35182221deef376137fd1ea0f2b78a8cf9fe4af461dc64
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 94d79bee9f2dd8ff5db78a5cf8001362ef50b61099e439b3b491f6af97d56e37
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 1652e1aa3a9f86ae25268d725738d8d25f0ddd77635315087d7ac6275dc69b75
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 5e2b5afc00e116caba8e3e0c3dd7fa84acfc212af2798a6dd19e67ce14df13f4
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 ed0d69765eb20171e663f60855430d4c4e1f8094d30feac9c951c7a250caaa11
              • MD5 SHA1 SHA512

              XxX.xXx

              • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
              • Size 8B
              • SHA256 24eb7afe9c203a2975a17871db825e8d7d7a4d683b99166e6c227a0256e2c2c1
              • MD5 SHA1 SHA512

              logs.dat

              • Path C:\Users\Admin\AppData\Roaming\logs.dat
              • Size 15B
              • SHA256 51a3fe220229aa3fdddc909e20a4b107e7497320a00792a280a03389f2eacb46
              • MD5 SHA1 SHA512

              server.exe

              • Path C:\Windows\SysWOW64\install\server.exe
              • Size 454KB
              • SHA256 03b2be7dc944c46239c333604a11747707535e0e8c08611a7513015c9cf02e95
              • MD5 SHA1 SHA512 SSDEEP

              memory/872-15-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/872-156-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/872-14-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/872-19-0x0000000024010000-0x0000000024072000-memory.dmp

              memory/872-10-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/872-13-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/1152-7-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1152-2-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1152-3-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1152-1-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1152-4-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1152-5-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1152-6-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1152-0-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1152-12-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1224-192-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1224-184-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1224-179-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/1224-182-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/3820-195-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/3820-198-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/4388-23-0x0000000000EC0000-0x0000000000EC1000-memory.dmp

              memory/4388-24-0x0000000000F80000-0x0000000000F81000-memory.dmp

              memory/4388-84-0x0000000024080000-0x00000000240E2000-memory.dmp

              memory/4388-190-0x0000000024080000-0x00000000240E2000-memory.dmp

              memory/4832-94-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/4832-221-0x0000000024160000-0x00000000241C2000-memory.dmp

              memory/4832-155-0x0000000024160000-0x00000000241C2000-memory.dmp